Which correctly describes crossing over?
a.)the process whereby nonsister chromatids exchange genetic material
b.)the process whereby homologous chromosomes are pulled to opposite poles of the cell
c.)the process whereby sister chromatids are pulled to opposite poles of the cell
d.)the process whereby homologous chromosome pairs align randomly along the metaphase plate

Answers

Answer 1
i would say A or D sorry if this doesn’t help

Related Questions

Melanin is a that is produced in organelles called in specialized cells called ________.

Answers

Answer:

Melanocytes

Explanation:

Melanocytes produce the protective skin-darkening pigment melanin. Melanocyte, specialized skin cell that produces the protective skin-darkening pigment melanin. Birds and mammals possess these pigment cells, which are found mainly in the epidermis, though they occur elsewhere like in the matrix of the hair.

Melanin is a that is produced in organelles called in specialized cells called

Melanosomes

Melanin is a dark pigment that is found in the skin of a human. This factor affects the color of the eyes, hair, etc in people as the more melanin available in the body, the darker these parts of the body are.

A specialized cell is responsible for the production of melanin called melanosomes and this is in varying quantities in different people.

Melanosomes are those cell nucleus that are responsible for the production, storage and transfer of melanin to the parts of the body.

Therefore, the correct answer is melanosomes

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please help me with this question:)

Answers

Answer:

It is a cell wall

Explanation:

the answer is a cell wall

which process in photosynthesis uses energy from the sun

Answers

Answer:

splitting water into hydrogen and oxygen

Explanation:

because

The light-dependent reaction

          The light-dependent reaction, as its name implies, occurs inside the thylakoid membrane and necessitates a constant supply of sunshine. The light waves' energy is captured by the chlorophyll and transformed into chemical energy in the form of the molecules ATP and NADPH.

What is Photosynthesis ?

           Plants and other living things employ a process called photosynthesis to transform light energy into chemical energy that can then be released through cellular respiration to power the organism's activities. Despite the fact that various species undertake photosynthesis in different ways, the process always starts when proteins called reaction centres that contain green chlorophyll absorb energy from light. Unlike bacteria, which have these proteins incorporated in the plasma membrane, plants store these proteins in organelles called chloroplasts, which are most prevalent in leaf cells.

         When the cell needs energy, ATP can be taken out and used to fuel processes or stored for use in later ones. Animals use ATP to retain the energy released during meal digestion. Similar to this, plants use ATP molecules to store the energy they obtain from light during photosynthesis.

          In addition to converting ADP to ATP, photosynthetic processes are used by plants to absorb, process, and store solar energy. Animals convert ADP to ATP, which can subsequently be utilised to drive essential development and cell maintenance, using the energy supplied from the breakdown of glucose and other molecules.

           Plants absorb water (H2O) and carbon dioxide (CO2) from the soil and atmosphere during photosynthesis. Water is oxidised, which means it loses electrons, while carbon dioxide is reduced, which means it receives electrons, inside the plant cell. Water is converted into oxygen and carbon dioxide into glucose as a result.

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In humans, earlobes that are suspended (detached) are dominant over those that are attached. If a mother has suspended earlobes (but her mother did not) and the father has attached earlobes, what are the chances that their first child will have attached earlobes?

Answers

Answer:

i would say it is a 50/50chance

Explanation:

Put the boxes in the correct order

Answers

Answer:

This was the question you asked earlier and you deleted it after i wrote a whole essay so here. I hope its still of some use.

Explanation:

I believe the most useful ap to use for people of age is Faceb00k. Faceb00k is a safe and friendly app where people can share what there doing or pictures.

So many parents and grandparents use this today to share photos of younger family members, and others can like and comment on there posts. Although their are some who receive hate, most of the people are quite rather friendly.

People like to share there appreciation for l0ved ones by letting the whole world see them through Faceb00k. Most elderly people do this so there younger ones can look back at all the memories they had together. Yes, its true they can just not post it and still look back at memories, but they post it because if it gets deleted and you posted the photos online there will always be a way to recover them.

In conclusion, this is why I believe Faceb00k is the best ap for the more elderly people. Firstly, they can show there memories to the world by showing appreciation. And lastly, whenever you post something online it can always be recovered, so those valuable moments will not be forever lost.

Which categories of amino acid would you expect to find on the surface of a soluble protein, and which would you expect to find in the interior? What distribution of amino acids would you expect to find in a protein embedded in a lipid bilayer?

Answers

Answer:

Polar and charged amino acid residues (the remainder after peptide bond formation) are more likely to be found on the surface of soluble proteins where they can interact with water, and nonpolar (e.g., amino acid side chains) are more likely to be found in the interior where they are sequestered from water.

Explanation:

The amino acids with POLAR and CHARGED side chains are expected to be observed on the membrane surface, whereas amino acids with NON-POLAR and HYDROPHOBIC side chains are expected to be found inside the lipid bilayer.

The lipidic bilayer is mainly composed of phospholipids.

Phospholipids have hydrophilic, polar phosphate heads facing out on each surface to interact with water and hydrophobic fatty acid tails facing each other inside the lipid bilayer.

The polar and charged side chains of amino acids are expected to be observed on the surface of membrane proteins because they can interact with water (H2O) molecules.

On the other hand, nonpolar side chains of specific amino acids are expected to be observed inside the lipid bilayer to interact with the hydrophobic fatty acid tails of phospholipids.

The polar amino acids include glutamine, glutamic acid, arginine, asparagine, aspartic acid, histidine, lysine, serine, and threonine.

Moreover, amino acids with hydrophobic side chains include leucine, isoleucine, glycine, alanine, valine and proline.

In conclusion, amino acid residues with POLAR and CHARGED side chains are expected to be observed on the membrane surface, whereas amino acids with NON-POLAR and HYDROPHOBIC chains are expected to be found inside the lipid bilayer.

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outline the process of biogas production​

Answers

Answer:

The production of biogas is the easiest way of extracting the energy from residues, under various factors.

Explanation:

It is produced from the organic residue – carbon, which degrades with the help of bacterias.

It can be produced using the anaerobic digesters and in this process biomass waste transforms into methane and this way produces the energy that is renewable and used for energy and heating.

During transcription, DNA is made into a molecule of _________________ which will travel to the ___________________ in the cytoplasm, Here, three bases, called a ________________ will determine what __________________ acid is added to the chain. This chain will fold into a _______________________________.

Answers

The answers to the blank spaces in the question are as follows:

mRNARibosomeCodonAminoProtein

GENE EXPRESSION:Transcription is the process by which DNA template is used to synthesize a mRNA molecule.

The mRNA molecule leaves the nucleus of the cell and transports to the ribosomes in the cytoplasm where the process of translation takes place.

The mRNA is read in a group of three nucleotide bases called codons. Each codon specifies an amino acid.

The amino acid, which are building blocks of proteins will undergo folding into a protein molecule.

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The answers to the blank spaces in the question are as follows mRNA, Ribosome, Codon, Aminoacid and Protein.

What is transcription?

Transcription is the procedure by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA).

DNA safely and stably stores genetic material in the nuclei of cells as a template.

Thus, the following are the correct answers.

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If Earth was like a hardboiled egg, which part of Earth would the egg white represent?

Mantle, as its depth is less than 2,900 kilometers
Core, as its depth is less than 2,900 kilometers
Mantle, as its depth is up to 6,500 kilometers
Core, as its depth is up to 6,500 kilometers

Answers

Answer:

The Mantle, as it's depth is less than 2,900 Kilometers.

Explanation:

Answer:

The Mantle as it's depth is less than 2,900 Kilometers.

Explanation:

true or false? all elements are compounds

Answers

false .. not all are

Which codon is the code for the amino acid serine (Ser)?
Messenger
Second base in codon
RNA Codons
U
С
A
G
UUU
Phe
UCU
UAU
UGU U
UUC UCC UAC
Tyr
UGC
Cys
U
Ser
UUA 1
Leu
UCA UAA Stop UGA Stop A
UUG UCG UAG Stop UGG Trp G
CUU CCU CAUT CGU U
His
CUC ССС САС! CGC
Leu
Pro
CUA CCA CAA CGA
Gin
CUG CCG CAG CGG
AUU ACU AAU
As
AGU
Ser
AUC lle ACC
ААС! AGC
A
Thr
AUA ACA
AAA
Arg
AUG startet ACG AAG AGG
GUU
GCU
GAU
Asp
GGU
U
GUC GCC
GAC
GGC
G
Val
Ala
GUA
Gly
GCA
GAA
Glu
GGA
A
GUG GCG GAG
GGG
Arg
First base in codon
이이이이이드
Third base in codon
OPOCO POCO Blocos
Lys AGA
A. AGU
B. UGA
C. AGG
D. AGA
No

Answers

Answer:

four codon in mRNA sequence code for serine aminoacid.

Explanation:

UCA

UCG

UCC

UCU

these four codons code for aminoacid serine.

Which of the following statements are accurate about Earth’s spheres?

SELECT ALL THAT APPLY.

A - earth’s spheres depend on each other
B - to maintain equilibrium, energy and mass is transferred between spheres
C - earth’s spheres support each other

Answers

Answer:

Option A, B and C.

Explanation:

The Earth spheres make up the components of the Earth and it comprises of both living and non living things.

The Earth spheres(hydrosphere, biosphere, atmosphere) are interconnected with each other. A change in a sphere can also in one way of the other influence change on the others. Interactions occur among the spheres I .e energy can be harness from one sphere to another.

For example birds can fly from biosphere to hydrosphere to obtain water. Their interactions cause or drive all the processes of the Earth which is an indication that they are connected to each other and react with each other.

Statements that are true as regards Earth’s spheres are;

A - earth’s spheres depend on each other

B - to maintain equilibrium, energy and mass is transferred between spheres

C - earth’s spheres support each other

There are four spheres that can be attributed to the Earth, and all these sphere are depend on each other. They are lithosphere, hydrosphere, atmosphere as well as biosphere.

The lithosphere is the part that  has solid rock, soil in it, to maintain equilibrium, there is usually transfer of mass and energy among the sphere.

Therefore, all options are correct.

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A repressor prevents
a. translation from occurring.

b. ribosomes from binding to mRNA

c. transcription factors from binding to DNA

Answers

I think it’s b ......


Organisms that must get there energy from food or other living things are
called:
zenotrophs
heterotrophs
autotrophs
plants

Answers

Answer:

b

Explanation:

heterotrophs animal

Which statement describes the motion of the water molecules in this situation

Answers

Answer:

im confused, what am i supposed to solve?

Explanation:

im ready to answer, but i dont know what im supposed to solve

If you multiply six positive numbers, the product sign will be

Answers

Answer:

Positive

Explanation:

Because there is no negative numbers in your equation and a positive times a positive equals a positive.

If a mutation occurred resulting in a single nucleotide addition to the below DNA sequence, what do you suspect would happen?

Answers

The number of bases is no longer divisible by three. This results in a frame-shift, and all codons from the point of mutation will be affected.

Write the equation of a line that is parallel to y = 0.62 + 3 and that passes through the point (-3,-5).



Answer is y=0.6x-3.2

Answers

Answer:

y = 0.6.x - 3.2

Explanation:

The slope-intercept form:

y = mx + b

m - slope

b - y-intercept

We have

y + 0.6x + 3

Parallel lines have the same slope. Therefore we have the equation:

y + 0.6x + b

The line passes through the point (-3, -5). Put the coordinates of the point to the equation and solve it for b:

-5 = 0.6(-3) + b

-5 = - 1.8 + b

-3.2 = b

           add 1.8 to both sides

Finally we have:

y = 0.6.x - 3.2

{Not mine :(}

Which of the following statements about meiosis is true?

Meiosis creates unique cells.

Meiosis creates identical cells.

Meiosis creates cells such as skin and muscle cells

Meiosis creates glucose in plant cells

Answers

Answer:3

Explanation:

ALOT OF POINTS MARKING POEPLE AS BRAINLIST

Look at the graph. Explain how the two population are related to each other

Answers

Look at the picture carefully so that means it’s the tallest ones

Which of the following statements correctly describes a difference between plant cells and animal cells?

2 points

A. Plant cells have an envelope surrounding the nucleus. Animal cells do not.

B. Animal cells contain mitochondria. Plant cells do not.

C. Animal cells contain chloroplasts. Plant cells do not.

D. Plant cells are surrounded by a cell wall. Animal cells are not.

Answers

Answer:

D

Explanation:

plant cells are the only kind of cell to have cell walls

The statement 'plant cells are surrounded by a cell wall, while animal cells are not' correctly describes the difference between plant cells and animal cells (Option D).

Both plants and animals are eukaryotic organisms, which means that their cells have nuclei and contain membrane-bound organelles.

Plant cells contain an organelle known as chloroplast, which is used by these organisms during photosynthesis.

Moreover, the plasma membrane of plant cells is surrounded by a cell wall that provides structural support to their cells.

In conclusion, the statement 'plant cells are surrounded by a cell wall, while animal cells are not' correctly describes the difference between plant cells and animal cells (Option D).

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Orms of obvious, overt prejudice, which are considered inappropriate by most social standards today, are sometimes called:________.

Answers

Answer:

Discrimination        

Explanation:

Discrimination of prejudice refers to the act of treating a person or people in a way that is wrong, unlawful, and inconsistent with the generally accepted moral standards just because they are different especially with respect to age, nationality, gender, etc

There are two categories of discrimination:

Overt and Covert.

Discrimination or prejudice is over when those who practice it are unafraid to make their thoughts and actions public. Many times this is so because the society in which they live condones such behavior and because there are no repercussions, they bold to make their unjust acts public. For example, name-calling, intentional rejection of job applications, etc.

Covert refers to using the system or giving logical reasons for discriminatory behavior. This is more subtle. For example, an employer may say they are not taking females due to the prerequisites of the job. Refusing "nicely" to be treated by a person of color in a hospital is another example.

Covert aggression of prejudice is often masked and occurs where the laws are relatively stiff on those who practice them. Also, a society that is evolving from largely prejudicial to less discriminatory will see more covert forms that overt forms of discrimination because those who practice overt prejudice are bold because they know that there are many more who think like them.

Cheers!


Which is biotic?
soil
leaf
water
snow

Answers

Answer:

leaf

Explanation:

it is a living thing

Biotic is leaf.

What is Biotic?

Biotic describe the living or once living components of an ecosystem

like animals and plants.

The biotic and abiotic components interact with each other in an ecosystem

What are abiotic?

abiotic describe the non living components of an ecosystem like soil, water, snow.

Hence, B) option is correct.    

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What affect do glass panels have on temperature google doc

Answers

Answer:

wdym

Explanation:

Atoms of A decay to atoms of B with a half-life of 200,000 years. If there are 20,000 atoms of A to begin with, how long will it take for there to be 2,500 atoms of A?

Answers

Answer:

The correct answer is: 600,000 years

Explanation:

Half-life is the time which is essential or required to decrease a specific substance to half of its initial amount of the substance. So, if a substance has a half-life of 200,000 years then it means it takes 200,000 years to decrease or change into a new substance and remain half of its initial quantity.

half-life              amount

     0                  20000

     1                    10000          

     2                    5000

     3                     2500

total half-life = 3 to 2500 atoms of A

so, the time will be = 3 * 200,000 years

 = 6000000

Veterinarians who specialize in birds are often referred to as herp veterinarians.
(True)
(False)

Answers

Answer:

false

Explanation:

quizlet said so

Answer:

FALSE

Explanation:

which best describes the results of mendels work with pea plants a) he figured out the fastest way to grow pea plants. b) he showes that pea plants do not pass traits to their offspring. c) he found the basic ideas about genetics. d) he discovered the scientific method.

Answers

Answer:

its C

Explanation:

The first organisms to appear on Earth did not need?
a. oxygen.
cells.
b. nitrogen
d chemicals
C
Please select the best answer from the choices provided
Ο Α
B
C

Answers

answer:
D

explanation:

Answer:

ANS IS DDDDDDDDDDDDDDDDDDDDDDDDDDDDDdd

Explanation:

i will mark u brainliest!!! What is on the biology module 3 dba? pleasee only leave real answers im struggling lol.

Answers

Answer:

WHat school?

Explanation:

FLVS: What are mutations and how do they occur? Explain their effects on organisms.

Explain how DNA is involved in creating genetic variation within a species. Is this considered a mutation, if so why?

Describe how you can use a Punnett square to predict the probability that offspring will inherit a trait. Provide explanations of genotypes and phenotypes.

Compare mitosis and meiosis. What type of cells are created through mitosis and meiosis and what is the function of each? What makes these processes vital to our survival?

Summarize how protein molecules are made through transcription and translation. Where do these processes take place?

What is genetic engineering? Provide an example of a positive example of genetic engineering technology and its impact on health and genetics.

These should be the questions.

They might be different for you

Please select the word from the list that best fits the definition

process in which liquid turns to vapor

Answers

Answer:

i think its vapporization

Answer:

evaporation

Explanation:

its the process in which water gets heated up to a point where it turns into steam or vapor

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