Chromosomes are structures of nucleic acids and proteins found in the nucleus of a cell. They contain all the genetic information of an organism. Humans have 46 pairs of chromosomes, with half from each parent. Which of the following best describes why the offspring will receive only half of the parents' chromosomes?
A)Chromosomes assort independently, and crossing-over occurs.
B)Gametes contain homologous pairs from the mother and father.
C)Diploid eukaryotic cells become haploid before fertilization.
D)The cell cycle stops, allowing for extra haploid cells to be made.

Answers

Answer 1

Answer:

C

Explanation:

I am pretty sure answer is C.

Answer 2

Chromosomes are structures of nucleic acids and proteins found in the nucleus of a cell, and they contain all the genetic information of an organism because chromosomes assort independently and crossing-over occurs, as in option A.

What is the function of the chromosome in meiosis?

The chromosomes present in the parent cell duplicate in the S phase of the cell cycle, and in the meiosis phase of the cell cycle, the daughter chromatids segregate and form four haploid cells from the parent cell. The child or offspring is the result of the fertilization of the sperm and the ovum, and the zygote is formed from the process that develops into the offspring, and the zygote has half the genetic contents of the paternal and maternal parents. In this way the chromosomes separate in the meiosis.

   

Hence, Chromosomes are structures of nucleic acids and proteins found in the nucleus of a cell, and they contain all the genetic information of an organism because chromosomes assort independently and crossing-over occurs, as in option A.

Learn more about the chromosome here.

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Related Questions

1. a fluid secretion of the body membranes or linings microorganism
2. a chemical produced by microorganisms that can destroy other bacteria and microorganisms infectious
3. a body condition characterized by yellowness of the skin mucus
4. an organism too small to be seen except with a microscope jaundice
5. spread by infection; causing infection; apt to spread antibiotic
6. tiny single-celled organisms that do not have a nucleus bacteria


Answers

Answer:

1.mucus

2.antibodies

3.jaundice

4.microorganisms

5.bacteria

6.archae bacteria

Explanation:

Answer:

1=

2=antibiotic

3=jaundice

4=microorganism

5=infectious

6=bacteria

Explanation:

Which force always attracts objects to each other? A. gravitational force B. electrical force C. electromagnetic force D. magnetic force

Answers

Answer:

A. Gravitational Force

Explanation:

When plants close their stomata, what else is affected?

Answers

they tend to close the stomata to prevent water loss

some genetically engineered fish can mate with wild members of their species. Farm raised fish are often genetically modified. What can happen to the wild species of fish if they mate with gmos

Answers

Answer:

The offspring might be partially modified.

Explanation:

anyone know what this is ??

Answers

Answer: :D

I believe there a type of fly(●'◡'●)

Explanation:

There are a lot of them near the area you live because of the weather or there habitat is good enough

D IS THE ANSWER

CLICK D

How can plastic kill marine organisms?

Answers

Answer:

They can eat it and choke...also imagine a human eating plastic, how well is that going to go? You can die from eating plastic, the same thing with marine creatures or any animals for that matter.

Explanation:

~Anna

Answer:

They can be killed by plastic by eating it, getting wrapped in PLASTIC bags, and they could get scratched by the cut plastic.

Explanation:

Just trust me as a Marine Biologist

Vestigial structures, such as hip bones in whales and appendixes
in humans, are those that have little or no function for the
organism. What is the most likely reason for this loss of function
over time?
The organism is undergoing speciation.
The organism is experiencing genetic drift.
The structure was over utilized by the organism.
The structure was not highly beneficial to the organism.

Answers

Answer:

A.

Explanation:

Humans used to use the appendix for good bacterial health in the gut. People used to drink dirty water and eat food that had lots of bacteria. The appendix would save them from infection.

when would you need to summarize and article

Answers

When you are copying from a direct source.
when copying from a direct source! :)

I need answers for 5 and 6 please

Answers

dsdfsfs

Explannnnnnnnnnnnnnnnnnnnnnnnation:

In the process of breaking down dead plant and animal materials, decomposers release nutrients back into the soil. True or false

Answers

The answer is true

Hope that helps! :)

What is the largest object in the image above??

Answers

Answer:

The one to the extreme right

Explanation:

The graph shows the progression of size getting larger from left to right

SECONG PART TO THE WORKSHEET HERE!!!!!


13. The different functions of the skeletal system include all of the following EXCEPT: *
a) Forms blood cells
b) Protects internal organs
c) Stores hormones
d) Assists movement

14. Which type(s) of muscle can contract without stimulation from the nervous system? *
a) skeletal only
b) skeletal and smooth
c) smooth and cardiac
d) cardiac only

15. Which division of the nervous system speeds up your heart rate? *
a) somatic
b) autonomic
c) central
d) brain and spinal cord

16. True or false. The pregnancy timeline begins on the first day of a women's menstrual cycle. *
a) True
b) False

17. Which of the following are events following fertilization? (Check all that apply. There may be more than one answer). *
a) Embryo develops into the fetus
b) Zygote cell rapidly divides
c) Embryo embeds into uterine wall
d) Zygote travels down the fallopian tube toward the uterus

18. Human development occurs in a series of stages, or processes. Which of the following best describes the key events that occur during gastrulation? *
a) The blastocyst attaches to the wall of the uterus and cells begin differentiating.
b) Cells migrate from the ectoderm to form the mesoderm; resulting resulting in the formation of three cell layers.
c) A sperm and egg fuse producing a fertilized egg.
d) Mesodermal tissue differentiates into the notochord and the nervous system develops.

19. How do endocrine glands send messages to other organs? (Select the best answer.) *
a) They release impulses that travel in the blood
b) They release hormones that travel in the blood
c) They release insulin that travels in the blood
d) They release action potentials that travel in the blood

20. All of the following are true about the integumentary system EXCEPT: *
a) It forms vitamin E
b) It is a barrier against infection and injury
c) It removes wastes
d) It gathers information and regulates body temperature

21. The brain forms in which stage / trimester? *
a) Blastula stage
b) Trimester 1
c) Trimester 2
d) Trimester 3

Answers

Answer:

15. C

16. C

17. B

18. ?

19.B

20.A

21.B

Hope this helps, sorry I didn't know 18.

Answer:

13) C

14) C

15) B

16) False

17) B, and D

18) B

19) B

20) A

21) B

Explanation:

I studied this in High School. Hope it helps :)

True or False: More carbon can dissolve in cold water than in warm water.

Answers

Answer:

The answer is true.

The picture shows a girl with a widow's peak.



The girl has a widow's peak because of her
genes, which are located in chromosomes in her cells' nuclei.
hormones, which are passed on from previous generations.
nutrition, and indicates her needs are met.
environment, in which it is an advantage.

Answers

What’s the question so we can help you?

PLEASE HELP Compounds that always contain the element carbon are called

Answers

I believe the answer is organic compound

The stem of a flower is put into a vase full of water. The stem looks like it is broken at the point where it enters the water.
What form of wave interaction causes the stem to look broken?

Answers

Answer:

refraction

Explanation:

its when an object appears broken or bent in water

Answer:

Refraction

Explanation:

What’s the role of oxygen in cellular respiration?

A.
It accepts electrons and keeps the electron transport chain running.
B.
It breaks down carbon-based sugar molecules to release energy and forms carbon dioxide.
C.
It combines with hydrogen ions in sugar molecules to release energy and form water.
D.
It supplies electrons to the electron transport chain to keep it running.

Answers

Answer:

C.

It combines with hydrogen ions in sugar molecules to release energy and form water.

Explanation:

I think sorry if I'm wrong.

PLEASE HELP. 20 POINTS

Alpha-1 is a hereditary disorder that affects the lungs. In order for the disease to develop, a child must inherit one recessive allele from each parent. Suppose Caryn’s mother has Alpha-1 and her father carries only one recessive allele. Which of the following claim best describes Caryn’s situation?


Caryn has no chance of developing Alpha-1.

Caryn has no chance of being a carrier for Alpha-1.

Caryn has a 50 percent chance of developing Alpha-1.

Caryn has a 100 percent chance of developing Alpha-1.

Answers

Caryn has a 50 percent chance of developing Alpha-1.

Answer:

50 percent chance

Explanation:

What is the purpose of the ATP and NADPH produced in the light reactions of photosynthesis?
A. to transfer light energy to excited electrons
B. to stop the electron transport chain
C. to act as carrier proteins in inner mitochondrial membranes
D. to transfer energy to compounds forming three carbon sugars

Answers

Answer: D. to transfer energy to compounds forming three-carbon sugars

Explanation: ATP and NADPH are produced in the light reactions by
when energy absorbed from the sun is conserved as ATP and NADPH. ATP and NADPH generated in the light reactions of photosynthesis are used to synthesize carbohydrates from carbon dioxide and water. The ATP and NADPH are used to reduce CO2 to triose phosphate which can be used to produce glucose. Green plants contain unique enzymatic machinery in their Chloroplasts which catalyzes the conversion of carbon dioxide to simple organic compounds in a process known as CO2 assimilation or carbon fixation. In this carbon fixation reactions, ATP and NADPH is used to drive the incorporation of carbon dioxide into ribulose 1,5-bisphosphate to produce glyceraldehyde 3-phosphate (a 3-carbon sugar) in a series of enzyme catalyzed reactions.

Mining leads to a reduction in
because it destroys
by uprooting forests and demolishing mountainsides.

Answers

Answer:

Your answer is rainfall.

Answer:

biodiversity

habitats

Explanation:

plato

Just a reminder to take a break! Your brain is hurting and you need some water! Use this app to understand not to cheat too!

Answers

Answer:

THX

Explanation:

Your mind needs to rest

Which is considered a modern space exploration project rather than a historical or future project

Answers

Answer:

Launch a space probe

Explanation:

its the newest

Answer:

d

Explanation:

What term is used to describe a system that loses energy to objects that are not part of the system?
raised
low
OOOO
open
closed

Answers

Answer:

open

Explanation:

Answer:

open

Explanation:

edge2o2o

match each term to its definition

Answers

Answer:

Solar Wind --> a stream of charged protons and eletrons

Solar Prominence --> A violent explosion

Gamma Ray Proton --> energy released

<3 * hope this helps! * <3

Answer:Solar Wind --> a stream of charged protons and eletronsSolar Prominence --> A violent explosionGamma Ray Proton --> energy released

Explanation:

Piyush is asked to classify samples of bacteria as bacilli, cocci, or spirilla.


Which is the most useful strategy for him to follow?

A. Analyze the DNA of the bacteria.
B. Raise colonies of the bacteria in several growth media.
C. Use a microscope to observe the shapes of the bacteria.
D. Use a microscope to observe the colors of the bacteria.

Answers

Answer:

C.Use a microscope to observe the shapes of the bacteria.

Explanation:

Bacteria is a type of pathogenic micro-organisms. They are mostly known to cause diseases and can be viewed using an electron microscope.

Bacteria have different shapes and colors. The shapes include bacilli(rod shaped), cocci(spherical)or spirilla( twisted).

The most useful strategy will be to use a microscope to observe the shapes of the bacteria.

2. What is an example of fast and dramatic erosion?

Answers

Explanation:

Erosion by Ice Ice, usually in the form of glaciers, can erode the earth and create dramatic landforms. In frigid areas and on some mountaintops, glaciers move slowly downhill and across the land. As they move, they transport everything in their path, from tiny grains of sand to huge boulders.

Describe a positive feedback cycle produced by overgrazing

Answers

Answer:

Increased damage to soils and natural communities and lands productivity.

Which of the following is incorrect about population growth ?

Answers

what are ur options for this?

Complete question:

Which of the following is INCORRECT about population census?

a. Trend in population growth, gender-age structure shape, and change in fertility, mortality and birth rates are all information mostly collected from census.

b. Census is usually carried out on the place or residence of an individual in that population.

C. Census provides accurate information without having liable to errors of coverage or content regarding the population statistics.

d. Census is used as a primary source data for the aspect of national building, especially in the aspect of social and economic growth.

e. Many countries carry the population censuses every 10 years to see the growth and shape of the population.

Answer:

Census provides accurate information without having liable to errors of coverage or content regarding the population statistics. Thus, the correct option is C.

What is population growth?

Population growth is defined as the increase in the number of humans on Earth.

For most of human history human population size was relatively stable. But with innovation and industrialization, energy, food, water, and medical care became more available and reliable.

For more information regarding  population growth, visit:

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Which was not produced by volcanic outgassing?
O A. Oxygen
O B. Sulfur
O C. Water vapor
O D. Carbon dioxide

Answers

Answer: A. Oxygen

Explanation:

The component that was not produced by volcanic outgassing is oxygen, while the rest of all the released during the process of a volcanic eruption.

What do you mean by Volcanic outgassing?

Volcanic outgassing may be defined as an eruption that releases a gas that was dissolved, trapped, frozen, or absorbed in some material.

Volcanic eruption transfers various gases from the interior of the Earth to the atmosphere leading to outgassing which includes water vapor, carbon dioxide, and sulfur.

Therefore, the component that was not produced by volcanic outgassing is oxygen, while the rest of all the released during the process of a volcanic eruption.

To learn more about Volcanic outgassing, refer to the link:

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OPEN ENDED QUESTION
Why is the Cuyahoga River fire an
important event in dealing with water
pollution?

Answers

It showed people to stop dumping trash into the river.

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