Question

Why are the 2 processes, meiosis and fertilization necessary for the correct number of chromosomes in...

Why are the 2 processes, meiosis and fertilization necessary for the correct number of chromosomes in zygote formation?
Science   Anatomy-And-Physiology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Meiosis is important because , by this process the number of chromosomes in the gametes are reduced to half through which they maintain constant chromosome number through the generations and also useful because it produces recombination where genetic variations occurs

Fertilization is also very important because , the gametes which are haploid in number fuse together and forms diploid zygote which helps in maintaining the correct number of chromosomes in the zygote

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Should the chromosome number of cells after meiosis be the same as the original cell was...
Should the chromosome number of cells after meiosis be the same as the original cell was before meiosis? Why or why not? Which stage of meiosis results in haploid cells (meiosis I or meiosis ii?) Which substage of your answer actually makes the cells haploid? Define fertilization, define zygote
1) Which of the following processes might produce a human zygote with 45 chromosomes? A)a non-disjunction...
1) Which of the following processes might produce a human zygote with 45 chromosomes? A)a non-disjunction in meiotic anaphase occurring in either an egg or sperm B)failure of the egg nucleus to be fertilized by the sperm C)failure of an egg to complete meiosis II D)incomplete cytokinesis during spermatogenesis after meiosis I 2)Which of the following characteristics of eukaryotic chromosomes cause them to shorten every time the DNA is replicated? A)DNA polymerase that cannot replicate the leading strand template to...
3.Explain why a life cycle that includes meiosis must also include fertilization. What is the advantage...
3.Explain why a life cycle that includes meiosis must also include fertilization. What is the advantage of such a life cycle?
1) Meiosis causes genetic variety by two processes of genetic _______. A) nondisjunction B) polyploidy C)...
1) Meiosis causes genetic variety by two processes of genetic _______. A) nondisjunction B) polyploidy C) recombination D) mutation E) anueploidy 2) Initial development of the zygote to become the 2-cell stage, 4-cell stage, and 8-cell stage is dependent upon ______. A) mitosis B) differentiation C) fragmentation D) meiosis
If gametes had the same number of chromosomes as body cells, and an organism had 24...
If gametes had the same number of chromosomes as body cells, and an organism had 24 chromosomes in its body cells, how many chromosomes would it have after three generations? How does this illustrate the necessity of meiosis for gamete formation?
For an organism with a Diploid number of 20 chromosomes, determine the per cell numbers of...
For an organism with a Diploid number of 20 chromosomes, determine the per cell numbers of the following (a-f) a) chromatids at metaphase of mitosis:___ b) chromosomes at metaphase of mitosis: ___ c) centromeres at metaphase of mitosis: ___ d) tetrads at metaphase 2 of meiosis: ___ e) chromatids at metaphase 2 of meiosis: ___ f) chromosomes at metaphase 1 of meiosis: ___
1) What is the importance of crossing over in meiosis? a. Crossing over results in the...
1) What is the importance of crossing over in meiosis? a. Crossing over results in the correct orientation of chromosomes during anaphase. b. Crossing over results in both sets of parents being upset at their offspring for being annoying. c. Crossing over results in genetic recombination and diversity within a species. d. Crossing over results in division of chromosomes during telophase of mitosis 2) What does meiosis result in? a. Meiosis results in halving the number of chromosomes that were...
Which choices accurately match each of the cellular processes to the stage of meiosis in which...
Which choices accurately match each of the cellular processes to the stage of meiosis in which it occurs? Select all that apply. Microtubules pull homologous chromosomes toward opposite poles in anaphase I. Sister chromatids move toward opposite poles of the cell in anaphase II. Crossing over occurs between homologous chromosomes in prophase II. Homologous chromosomes undergo synapsis in prophase II. 2. Consider a diploid organism with a haploid complement of 4 chromosomes in its gametes. At meiotic prophase I, how...
When maternal and paternal chromosomes fail to separate correctly during meiosis leading to defective chromosome number...
When maternal and paternal chromosomes fail to separate correctly during meiosis leading to defective chromosome number in gametes, it is called...... Select one: a. homologous recombination b. gene conversion c. independent assortment d. transposition e. nondisjunction
1. Why are abnormalities in the number of sex chromosomes in mammals usually less severe in...
1. Why are abnormalities in the number of sex chromosomes in mammals usually less severe in their phenotypic effects than abnormalities in the number of autosomes? 2. Certain trees are known to occur with several different chromosome numbers. Individuals with the somatic chromosome numbers of 28, 56, 70, and 84 have been identified. With regard to chromosome number, what would be the designation given to these different individuals? 3. The following pair of chromosomes is present in an inversion heterozygote....
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT