Why are there two copies of each chromosome? Question 5 options: One copy comes from each parent Chromosomes were duplicated in mitosis The chromosomes copied themselves through DNA replication

Answers

Answer 1

Answer:

One copy comes from each parent

Explanation:

The correct answer would be that one copy comes from each parent.

During gamete formation, the chromosome number in the sex cells is usually halved to produce haploid gametes. Haploid gametes fuse together and donate their chromosomes to form a diploid zygote during the fertilization process. Hence, one copy of the two chromosomes in diploid organisms comes from each parent.


Related Questions

If a bee colony with 50,000 bees loses 30 percent of its bees during one winter, how many bees will survive that winter?

Answers

Answer:

15,000

Explanation:

first you have to find out what 30% is equvalent  to once you find the number subtrat from your original number therefore you have 15,000 bees who have survived.

Answer:

15,000

Explanation:

HELP ME PLEASE I NEED THIS FAST!!!!!!!!!!!!!!!!111 Food generates so much greenhouse gas because of the ever-rising demand for meat, with livestock responsible for __________________ percent of global methane emissions.

Answers

Answer:

Approximately 14.5%

Explanation:

Livestock are responsible for about 14.5 percent of global greenhouse gas emissions, according to the United Nations' Food and Agriculture Organisation (FAO). According to calculations by some experts, this puts the livestock sector on par with transport

Determine if the term is a cell, tissue, organ, or organ system. A tube passing from the mouth to the lungs______ *
cell
tissue
organ
organ system

Answers

Answer:

organ

Explanation:

A tube passing from the mouth to the lungs is an organ

What do you think is the most useful adaptation that octopuses have evolved? Why?

Answers

Answer:

Octopuses have evolved because they came from squid. They also must have evolved from eels or jellyfish. Most likely, it evolved from a jellyfish to be exact.

Explanation:

Consider a population of 100 fox squirrels. The population is increasing exponentially, by a rate of 30% each year. If this rate continues, how many fox squirrels will there be in this population after two years?

Answers

Answer:

Future population = 169 squirrels

Explanation:

Given:

Current population = 100

Rate of growth = 30 % = 0.30

Time = 2 year

Find:

Future population

Computation:

Future population = 100(1+0.30)²

Future population = 100(1.30)²

Future population = 100(1.30)²

Future population = 169 squirrels

Genetics Movie
Show Details
E
4
Every cell in an organism has the same number of
chromosomes, except:
A
Skin cells
B.
Neurons
C
White blood cells
D Reproductive cells

Answers

i think neurons sorry if it’s wrong

Answer:

D

Explanation:

Took the test

How would you compare minerals to rocks? Different and how they are similar

Answers

A mineral is a solid formation that occurs naturally in the earth while a rock is a solid combination of more than one mineral formations which is also occurring naturally. A mineral has a unique chemical composition and is necessarily defined by its crystalline structure and shape

I need help please!!!
Hypothesize what the results would be if a large cell managed to divide, despite the fact that it had grown beyond an optimum size

Answers

Answer:

Hypothesize what the result would be if a large cell managed to divide, despite the fact that it had grown beyond an optimum size. The resulting cells could not sustain themselves if the plasma membrane to cell contents (SA to Volume) ratio was too small a difference.

Explanation:

It is likely that the resulting daughter cells would be smaller than normal and may not function properly, potentially leading to impaired growth or viability of the organism.

What happens when cells divide after growing beyond an optimum size?

If a large cell managed to divide despite the fact that it had grown beyond an optimum size, it is likely that the resulting daughter cells would be abnormal in size or function. Cells that are larger than the normal range for their type tend to have problems with DNA synthesis and cell division. The DNA may not be accurately replicated, leading to genetic errors and abnormal gene expression. The cell division process may also be impaired, resulting in cells that are larger or smaller than normal.

The consequences of these abnormalities could be serious and potentially harmful to the organism. Abnormal cells may be unable to perform their normal functions, leading to deficiencies or malfunctions in the tissues or organs where they are located. In extreme cases, abnormal cells may become cancerous and contribute to the development of tumors. For these reasons, it is important for cells to divide when they are at an optimal size, in order to ensure that the daughter cells are healthy and functional.

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If a plant is composed of cells that contain nuclei are they eukaryotic prokaryotic or multikaryotic?

Answers

Answer:

The predominantly single-celled organisms of the domains Bacteria and Archaea are classified as prokaryotes (pro– = before; –karyon– = nucleus). Animal cells, plant cells, fungi, and protists are eukaryotes (eu– = true).

Explanation:

They are the first one


1.) Mitosis happens so that we can grow and repair injuries.
A. True
B. false

Answers

Answer:

B

Explanation:

,................................

Answer:

true

Explanation:

it happens so injuries can heal

List 10-15 facts about Rusty-Spotted Cats.
At least 5 would be helpful too.

Answers

- there are two subspecies of this animal

- they can be found in india and sri lanka

- threats of these cats are habitat loss, hunting for their meat, and the crossbreading with other domestic cats

- they are listed as vulnerable because they are down to less than 10,000 cats

- it is one of the smallest cat species (two times smaller than a domestic cat)

- these animals can climb trees to avoid predators (making them very agile) but spend most time on ground

- they are nocturnal

- they are carnivores and eat lizards,birds, frogs and rodents.

- when captive in zoos, they are very friendly towards zoo keepers and there are 56 kept in zoos worldwide.

- in captivity, these animals can live to around 18 years.

hope this helps and please mark brainliest!

Describe three adaptations
of exchange surfaces?​

Answers

Answer:

large surface area, high concentration gradient to the substance and thin barriers to minimize diffusion distance

Explanation:

Where does the energy come from that makes the movement of air and water possible?

Answers

Answer: Solar energy

Explanation:

The water and wind cycle is driven by the solar energy. The solar energy evaporates the water from the water bodies like oceans, rivers, lakes, and ponds and from other sources of water.

The earth's surface absorbs the heat radiations from the solar energy and the air above the earth's surface get hotter due to absorption of heat.

3 reasons why bringing back extinct animals would help preserve the planet

Answers

true hope this helps

Answer:

3 reasons why to bring back extinct animals would help preserve the earth is:

1.) Revived species could also assist conservation by acting as a “flagship species”.

2.) People may be excited to see a formerly extinct species, and are more willing to engage in conservation.

3.) At the same time, extinct species could also reinforce the preservation and protection of natural habitats.

what is a silent mutation?
A) A mutation that does not involve a change to bases.
B) A mutation that involves the loss of a chromosome.
C) A mutation that does not affect protein production.
D) A mutation that is beneficial to the organism.

Answers

Answer:

C

Explanation:

Silent mutations occur when the change of a single DNA nucleotide within a protein-coding portion of a gene does not affect the sequence of amino acids that make up the gene's protein

Answer: C!

Explanation:

Ap_x

What is an Swave shadow zone?
A. regions of Earth's surface where no damage occurs during a particular earthquake
B. regions of Earth's surface where no shaking occurs during a particular earthquake
c. regions of Earth's surface where only S waves can be detected for a particular earthquake
D. regions of Earth's surface where no S waves can be detected for a particular earthquake

Answers

Answer:

answer is d I telling my own

Purple flowers are dominant over white flowers. A heterozygous purple flower is crossed with another heterozygous purple flower. What will the ratio of purple to white be?
3:1
1:3
2:2
4:0

Answers

Answer:

The ratio will be 3:1

Explanation:

edge 2020

The ratio of the purple to white flowers produced from a cross between two heterozygous purple flowers will be 3:1. Thus, the correct option will be A.

What is a Genetic cross?

A genetic cross is the deliberate breeding of two different individuals which results in the production of offspring that carry part of the genetic material from each of the two parents. The parent organisms must be genetically compatible to each other and may also be from different varieties or two closely related species.

Genetic cross diagrams are made using Punnett squares that show how likely the offspring are to inherit the characteristics from both of their parents.

In the given condition, two heterozygous purple flower parents are crossed. Here, the purple flower color is dominant over white flower color and from this cross, the organisms produced in 3:1 ratio with three purple flower plants and one white flower plant.

Therefore, the correct option will be A.

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The cells of only one body system go through the process of meiosis. Which body system produces gametes?
Group of answer choices

Endocrine

Skeletal

Excretory

Reproductive

Answers

Reproductive that the answer

What are the parts of the pistil and stamen?
Which part is male and which part is female?

Answers

The male parts of the flower are called the stamens and are made up of the anther at the top and the stalk or filament that supports the anther. The female elements are collectively called the pistil. The top of the pistil is called the stigma, which is a sticky surface receptive to pollen.

Hope this helps :)

the raw material of fermentation.

Answers

Answer:

Biomass

Explanation:

Its just the answer

Gray skin is dominant to pink skin:
SS:
Ss:
SS:

Answers

Gray skin: SS, Ss Pink skin: ss

Answer:

I agree

Explanation:

name the protein found in white and yellow fibers

Answers

Answer: The protein found in white fibre is collagen. The protein found in yellow fibre is elastin.

Explanation:

Answer:

the protien found in white fibre is collagen and the protien found in white fibre is elastin

Explanation:

please mark me as brainliest

DNA replication results in two separate DNA molecules. How are the DNA molecules at the end of the process related to the DNA molecule at the beginning of the process.

Answers

At the end of the result concludes RNA (Copied exact genes off of DNA)

The DNA double helix. Helices open as hydrogen bonds disintegrate. The creation of a new, complementary strand uses the template provided by each DNA strand.

What is the regulation of DNA replication process?

A new and an old chain of nucleotides is combined to form two DNA molecules as a result of DNA replication.

Because half of the chain is made up of the original DNA molecule and half is new, DNA replication is referred to be semi-conservative.

With one new and one old strand in each, replication creates two identical DNA double helices.

The production of a primer, a brief section of RNA that serves as the beginning point for the synthesis of fresh DNA, follows.

Therefore,DNA helicases unwind DNA during DNA replication at locations known as origins where synthesis will begin.

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what is the main difference between active and passive transport ​

Answers

Active transport moves molecules and ions from lower concentration to higher concentration with the help of energy in the form of ATP & passive transport moves molecules and ions from a higher concentration to lower concentration without any energy.

Which statement best compares pioneer species with climax communities?

A.Both are involved with stages of succession, but climax communities are the beginning and pioneer species are the end result.
B.Both are involved with stages of succession, but pioneer species are the beginning and climax communities are the end result.
C.The appearance of each indicates that the number of species in the area is increasing.
D.The appearance of each indicates that the number of species in the area is decreasing.

Answers

I believe the answer is B

What two things must be present for a mechanical wave to form?
a. Time & Energy
b. Energy & Resistance
c. Energy & a Medium
d. A Medium & Time

Answers

Answer:

b.energy andresistence

The equation below shows a process that occurs in all green plants.

carbon dioxide + water + energy → glucose + oxygen

Which statement about this process is true and supported by the equation?

Ⓐ The process does not follow the law of conservation of mass
Ⓑ The process is called cellular respiration
Ⓒ The process does follow the law of conservation of mass and energy is not in the product
Ⓓ The process follows the law of conservation of mass and energy is found in the product

Answers

Answer:D

Explanation: the number of atoms stays the same, and the energy is used to make the products.

A red Corvette is traveling down Broad St. At 45mph. The speeld limit is 25 mph. The car is captured on camera speeding, how many miles per hour was the car traveling over the speed limit?

Answers

Answer:

The answer is 20 mph

Explanation:

This question is more technical than it is of actual calculation. The car was travelling at a speed of 45 miles per hour when the actual speed limit that should be observed is 25 miles per hour. His excess speed can be calculated as

45 mph - 25 mph = 20 mph

Thus, the car was travelling at a speed of 20 mph more than the actual speed limit of the road which is 25 mph

the ball is pushed so it begins to roll down the hill . it now has _______
A) kinetic energy
B) a rest position
C) more potential
D) no energy​

Answers

Hi there!

[tex]\large\boxed{\text{A) Kinetic Energy}}[/tex]

When an object begins at rest but a force acts upon it to cause it to be in motion, energy transfer occurs.

In this instance, the ball was initially at rest, so it had potential energy. Once the ball begins is in motion, however, the potential energy is converted into Kinetic Energy.

Acids are corrosive
True
False

Answers

Answer:

True

Explanation:

Acid is naturally corrosive in nature.

More stronger an acid is, the more corrosive it is.

Answer:

its true !!!!!!!!!!!!!

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