Answer:
b
Explanation:
First, let us assume the long-stem trait to be represented by the allele A and its short stem counterpart by the allele a.
Pure-breeding long-stem = AA
Pure-breeding short-stem = aa
AA x aa
F1: Aa Aa Aa Aa
The F1 generation was allowed to self-pollinate
Aa x Aa
F2: AA Aa Aa aa
Test-crossing means crossing an organism of doubtful zygosity with a phenotypically recessive version of the same organism.
From the resulting F2, the long-stemmed offspring are of 2 genotypes - AA and Aa. If AA is test-crossed with a phenotypically recessive version:
AA x aa
Aa Aa Aa Aa
all the offspring are expected to have long stems.
If the Aa offspring is test-crossed with aa:
Aa x aa
Aa Aa aa aa
Half or 1/2 of the offspring are expected to have short stems.
Considering the second cross, the correct option is, therefore, b.
Which of the following agents of erosion would be the direct cause of a landslide?
A. gravity
B. ice
C. water
D. wind
Answer:
A.
Explanation:
because the gravity will drop
When a protein needs to be made, a signal is sent to a cell to turn on the ___B___ that codes for the needed protein. This is the start of transcription. Transcription occurs inside the ___C___ (cell organelle). During transcription, DNA is read by an enzyme called ___D___ and produces ___E___, abbreviated mRNA. This newly created mRNA molecule moves to the ___F___ (part of cell) where the process of translation can occur. During translation, small organelles called ___G___ read the mRNA sequence. These organelles direct transfer RNA, or tRNA, to assemble a specific sequence of ___H___ (2 words). A ___I___ is a sequence of three mRNA bases that codes for one amino acid. When all the amino acids coded for by a gene link, they fold, and this creates a functional ___J___.
Answer:
B: gene
C: nucleus
D: RNA polymerase
E: messenger RNA
F: cytoplasm
G: ribosomes
H: amino acids
I: codon
Explanation:
When you look at the protein synthesis process and the steps, this is how it all occurs. (: Hope this helped.
Filling up the gaps in the your question with the correct answers ;
A signal is sent to a cell to turn on the gene ( B ) Transcription occurs inside the Nucleus ( C )DNA is read by an enzymes called RNA polymerase ( D ) and produces messenger RNA ( E )Newly created mRNA molecule moves to the Cytoplasm ( F ) During translation small organelles called Ribosomes ( G ) read mRNA A specific sequence of Amino acids ( H ). A codon ( I ) is a sequence of three mRNA bases that codes for one amino acidThis creates a Functional Protein ( J )Transcription is simply the synthesis of RNA from DNA by the conversion of a DNA code to a complementary RNA code while
Translation is the synthesis of protein from mRNA by the conversion of mRNA code into an amino acid sequence which is contained in the protein
Hence we can conclude that the answers to your question are as written in the gaps left in your question above.
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A____ is the smallest particle of an element that has the chemical properties of that element
Answer:
the answer is an atom :)
Which of these organelles are responsible for providing internal
support and structure for cells? *
1 point
A. Golgi Body
B. Cytoskeleton
C. Cell membrane
D. Chloroplast
ANSWER ASAP
The organelle responsible for providing internal support and structure for cells is the cytoskeleton.
What is a cytoskeleton?The cytoskeleton is a dense network present in the cytoplasm.
The cytoskeleton is a structure that provides shape and internal organization to the cell.
It also gives the cell mechanical strength.
It helps the cell to perform its functions.
Thus, the correct option is B., cytoskeleton.
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The density of a substance equals its mass divided by its volume. Talia listed the density of some common materials at 20 °C.
Material / Density (g/cm3)
gasoline = 0.70
mercury = 13.6
milk = 1.03
water = 0.998
If Talia has 10 grams of each material, which material has the greatest volume?
Show your work below.
Answer:
some common materials at 20°C
Material
Density (g/cm3)
gasoline
0.70
mercury
136
milk
1.03
water
0.998
If Talia has 10 grams of each material, which material has the greatest volume?
Explanation:
What is the Kyoto Protocol?
A) a new technology for cars
B) a set of laws made in Japan that deals with how cars are made
C) a way of going about doing science on the atmosphere
D) a document that sets out a plan for reducing carbon gases
Answer:
D
Explanation:
Answer:
D) a document that sets out a plan for reducing carbon gases
Explanation:
an amino acid is deaminated. this is the removal of
Answer:
an amino acid group from a molecule
Answer:
Deamination is the removal of an amino group from a molecule.
What happens when the seafloor spreads?
_________________ results in the formation of two new cells.
Answer:
mitosis
Explanation:
A: mitosis results in the formation of two new cells.
E: Mitosis results in the formation of two genetically identical daughter cells. This is because all the genetic material is duplicated then segregated equally to the daughter cells.
what is a reservoir fit carbon and nitrogen, but not phosphorus?
Answer:
The atmosphere is a reservoir for carbon and nitrogen and cannot be a reservoir for phosphorous. This is because the phosphorous cycle does not include gaseous phase.
Explanation:
6. During the very early stages of a person's life cycle, the rate of cell division proceeds rapidly. During this time, cells show little growth. What can you conclude from this information about the cell cycle during these very early stages of development?
F The cell cycle consists mainly of a long G phase.
G The cell cycle consists mainly of short M and S phases.
H Most cells exit the cell cycle.
j Most cells will not undergo mitosis.
Which is the major organ of the immune system?
O kidney
O blood vessels
Olymph nodes
O stomach
Answer:
lymph nodes is the answer
Explain the importance of having both chloroplast and mitochondrial in plant cells
Keep it short
Answer:
Chloroplasts make food for plants and the Mitochondria uses oxygen to make ATP.
Explanation:
Enzymes are protein catalysts. What is the role of a catalyst?
Answer:
Enzymes are proteins functioning as catalysts that speed up reactions by lowering the activation energy. A simple and succinct definition of an enzyme is that it is a biological catalyst that accelerates a chemical reaction without altering its equilibrium.
Catalysts make such a breaking and rebuilding happen more efficiently. They do this by lowering the activation energy for the chemical reaction. Activation energy is the amount of energy needed to allow the chemical reaction to occur. The catalyst just changes the path to the new chemical partnership.
When the head is tilted, what are the structures the signal passes through on its way to becoming a fully processed neural signal within the brain?
When the head is tilted, the fluid within the_____of the inner ear moves. The exact location of stimulated cells depends on the plane of movement-with each plane being represented by a different part of that structure. The movement of fluid stimulates______which transduce the signal into an electrical signal. This signal travels through the_____nerve to the____nucleus of the_____.
Answer:
The fluid within the semicircular ducts of the inner ear, that is, endolymph moves when the head is tilted. The precise position of the stimulated cells relies upon the plane of movement with each vertical or horizontal plane being signified by distinct parts of its composition. The hair cells that transduce the signal into an electrical signal get stimulated due to the movement of fluid. The conduction of this signal takes place via the auditory nerve to the cochlear nucleus of the brainstem.
Within the inner ear cochlea, the stimulation of the hair cells or stereocilia takes place by endolymph, it is a fluid present in semicircular ducts. After stimulation, the hair cells mediate electric signals to the brain via the auditory nerve, these are the nerve bundles that carry signals of sound. The initial central auditory composition found in the brainstem is the Cochlea nucleus.
Answer:
the fluid within the -semicircular canals- of the inner ear moves. the movement of the fluid stimulates the -hair cells- which transduce the signal into an electric signal. This signal travels through the -vestibulocochlear nerve- to the vestibular nucleus of the -medulla oblongata-.
Explanation:
Giant Sequoias are commonly called_________________?
Answer:
Redwoods
Explanation:
26. Suppose the two guanosine (G) nucleotides in #3 above were changed to two cytosine (C) nucleotides. What is the new amino acid chain?
Answer:
This question is incomplete
Explanation:
This question is incomplete but the completed question can be found in the attachment below.
During protein synthesis, a sequence of three mRNA nucleotides (called codons) correspond to specific amino acids. From the question, the change in guanosine nucleotides will change the sequence as follow
DNA: T--A--C--A--A--C--T--A--C--T--T--C--T--T--T--C--T--T--A--A--A
mRNA: A--U--G|-U--U--G|-A--U--G|-A--A--G|-A--A--A|-G--A--A|-U--U--U
Amino Acids: met -- leu -- met -- lys -- lys -- Glu -- Phe
The new amino acid sequence is represented above from the new DNA sequence.
Decomposers are also called? *
A. Herbivores
B. Carnivores
C. Consumers
D. Producers
Answer:
The answer is C.
Explanation:
Decomposers feed on dead organisms like plants and animals.
If you fertilize your houseplant too often, you may find that it looks wilted even when the soil is wet. Explain what has happened in terms of water potential?
Answer:
Water moved out of the cells of the houseplant into the extracellular solution because they (plant cells) have a high water potential (Ψ) than the extracellular environment.
Please find the explanation below
Explanation:
In biology, water potential, denoted by Ψ, refers to the ability of water to move freely in a system. Based on this definition, a hypertonic solution (solution with higher solute concentration) will have a low Ψ while a hypotonic solution (solution with low solute concentration) will have a high Ψ.
According to this question, if a houseplant is fertilized too often, it will increase the concentration of solute in the soil (extracellular environment of the plant cells) i.e. the fertilizer will make the extracellular solution HYPERTONIC. Because the cells of the houseplant are hypotonic to the soil solution i.e. now has a high Ψ in comparison with the soil solution, water will move from the cells of the plant to the soil solution (extracellular) via the cell membrane (semi-permeable membrane) in a process called OSMOSIS.
NOTE: Water moves from a solution with high Ψ to a solution with low Ψ. This is what propels the movement of water from the cell with a high water potential to the exterior of the cell with a low water potential (caused by frequent addition of fertilizer). Overall, the houseplant will look WILTED even if the soil is wet.
Answer:
Water moved out of the cells of the houseplant into the extracellular solution because they (plant cells) have a high water potential (Ψ) than the extracellular environment.
Please find the explanation below
Explanation:
In biology, water potential, denoted by Ψ, refers to the ability of water to move freely in a system. Based on this definition, a hypertonic solution (solution with higher solute concentration) will have a low Ψ while a hypotonic solution (solution with low solute concentration) will have a high Ψ.
According to this question, if a houseplant is fertilized too often, it will increase the concentration of solute in the soil (extracellular environment of the plant cells) i.e. the fertilizer will make the extracellular solution HYPERTONIC. Because the cells of the houseplant are hypotonic to the soil solution i.e. now has a high Ψ in comparison with the soil solution, water will move from the cells of the plant to the soil solution (extracellular) via the cell membrane (semi-permeable membrane) in a process called OSMOSIS.
NOTE: Water moves from a solution with high Ψ to a solution with low Ψ. This is what propels the movement of water from the cell with a high water potential to the exterior of the cell with a low water potential (caused by frequent addition of fertilizer). Overall, the houseplant will look WILTED even if the soil is wet.
Explanation:
What do bears prefer to eat most
Answer:
only the basic bears
Explanation:
Black bears are very opportunistic eaters. Most of their diet consists of grasses, roots, berries, and insects. They will also eat fish and mammals—including carrion—and easily develop a taste for human foods and garbage.
Alaskan brown bears are opportunistic eaters and will eat almost anything. Their diet consists of berries, flowers, grasses, herbs, and roots. They get their protein from beavers, deer, caribou, salmon, carcasses, and other small mammals.
Polar bears feed mainly on ringed and bearded seals. ... When other food is unavailable, polar bears will eat just about any animal they can get, including reindeer, small rodents, seabirds, waterfowl, fish, eggs, vegetation (including kelp), berries, and human garbage.
A panda's daily diet consists almost entirely of the leaves, stems and shoots of various bamboo species. Bamboo contains very little nutritional value so pandas must eat 12-38kg every day to meet their energy needs.
Looking at the Punnett square, what are the possible genotypes and frequencies
of Martha and John's children? *
A
a
а
Аа
аа
а
Аа
аа
Your answer
Answer:
50% or 1/2 of the children will be heterozygous.
50% or 1/2 of the children will be recessive hom0zygotic.
Explanation:
The author compares the movement of the plates to chunks of ice moving on the top of the frozen river. This comparison is used to:
Answer:
this comparison is used to help explain the movement of the plates, to give an example of the movement.
Explanation:
This analogy is used to illustrate the movement of the plates and to assist understand it.
What is plate tectonics?A uniform framework for comprehending mountain-building processes, volcanic eruptions, earthquakes, the evolution of the Earth's surface, and reconstructing the planet's former continents and oceans was provided by the plate tectonics theory, which deals with the dynamics of the lithosphere, the outer shell of the planet. This theory revolutionized Earth sciences.
In the 1960s, the theory of plate tectonics was developed. The lithosphere, which is Earth's outermost layer and is normally around 100 km (60 miles) thick, sits on top of the asthenosphere, which is malleable and partially molten. The lithosphere is divided into numerous tiny plates, six or seven medium-sized regional plates, and seven extremely massive continental and oceanic plates.
These plates interact at their borders, where they converge, diverge, or slide past one another, moving relative to one another often at speeds of 5 to 10 cm (2 to 4 inches) each year. Although earthquakes and volcanoes can occur in plate interiors, these interactions are regarded to be the main cause of the majority of Earth's seismic and volcanic activity.
Where plates press together or converge, mountains will rise, and where plates pull away or diverge, continents will split and oceans will arise. Since the continents are passively drifting with the plates over the course of millions of years, the Earth's geography has undergone enormous changes.
Therefore, this analogy is used to illustrate the movement of the plates and to assist understand it.
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Considering aesthetics means thinking about a product's
Answer:
Aesthetics is about . You may think of aesthetics as distinctly different from a product’s function, but it’s not. To be considered great design and desirable to users, a product must both function well and exhibit good design with attributes like beauty, smart ergonomics, and a form that aids in function.
Answer:
Functionality
Explanation:
Which of the following organisms have the ability to do photosynthesis
Answer:
any plants
Explanation:
can I please get 2 paragraph about water cycle.Note if you put something dumb i will report thanks
Answer:
Here is my water cycle report
Water is evaporated, then is condensed and then it makes the clouds form, and precipitates back to earth, in the form of rain, or snow.
Explanation: All of these stages are caused by the sun, and the sun helps them rotate, and cause a cycle
Why do different cells have different functions?
a All cells have the same functions.
b Because different cells have different genes.
c Because different cells have diferent DNA.
d Because different cells have different proteins.
Answer: its b
Explanation:
30. Which of the following is out of sequence?
Earth
solar system
Milky Way
universe
moon
The solar system is defined as the system of the Sun, planets, and other celestial objects bound together by gravitational force. The solar system is present in a milky way, which lies in the universe.
The correct sequence of the celestial objects with respect to their size aligned in a Solar system is the moon, Earth, Solar system, Milky Way, and the universe.
The statements can be explained as:
The moon is the natural satellite of the Earth, which revolves and rotates around the Earth in a fixed path.The Earth is a planet that revolves around Sun and rotates on its own axis. The solar system comprises the sun, planets, and other celestial objects. The solar system is present in a galaxy. The milky way is one of the billions galaxy present in the universe. A galaxy has billions of solar systems, which are light-years apart.
Thus, the celestial objects, galaxies, and constellations make up the universe.
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The scientist's hypothesis that all of the continents were previously one large continent until something caused them to move apart is called _______________.
continental drift
Pangaea
origin of continents
supercontinent
5. The test report above shows the level of molecules in different parts of the patient’s body. How would you expect this patient to do on an exercise test?
Answer:
Poorly; his digestive system is not breaking down molecules from food into glucose.
Explanation:
how many co2 produced in 3 glucose
Answer:
Co2 produced in 3 glucose is 2