Question

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
Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Answer 1: Meiosis causes genetic variety by two processes of genetic Recombination.

The recombination occurs at the crossing over stage of meiosis. there the crossovers lead to recombination of genes leading to genetic variety and diversity.

Answer2:

Initial development of the zygote to become the 2-cell stage, 4-cell stage, and 8-cell stage is dependent upon _____mitosis_.

simple equational division takes place till the gastrulation stage, where the number of cells is doubled with every division.

  

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
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...
We have seen that mitosis and meiosis, having different goals, differ in some important ways. The...
We have seen that mitosis and meiosis, having different goals, differ in some important ways. The following questions refer to these differences. ​A) How do mitosis and meiosis differ in number of repetitions of the reproductive portion of the cell cycle? __________________________________________________________________________________________________ __________________________________________________________________________________________________ ​B) Something very important to the production of gametes occurs in the first part of meiosis (meiosis 1), involving an ​interaction between homologous chromosomes, that does not occur in mitosis. What is this process and how does...
91) Which of these statements is correct? A) When bacteria conjugate, they mutually exchange genetic material....
91) Which of these statements is correct? A) When bacteria conjugate, they mutually exchange genetic material. B) Bacteria genetic material is confined within vesicles known as plasmids. C) Archaea sexually reproduce but bacteria do not. D) Bacteria sexually reproduce but archaea do not. E) Prokaryotes divide by binary fission, without mitosis or meiosis. 92) A fish that has been salt-cured subsequently develops a reddish color. You suspect that the fish has been contaminated by the extreme halophile. Which of these...
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...
13. Diploidy can maintain genetic variation through A. Hybrid vigor B. Masking recessive alleles C. Alternatively...
13. Diploidy can maintain genetic variation through A. Hybrid vigor B. Masking recessive alleles C. Alternatively selecting for the rare phenotype D. Assortative mating E. Epistasis 14. When studying the evolutionary relationships between taxa that are more distantly related (e.g. sponges to mammals) it is best to study genes that A. are neutral with regard to their effect on the phenotype B. that accumulate mutations at slow rates possibly because selection removes most mutations C. mutate rapidly and frequently D....
1. Can haploid organisms reproduce using meiosis?            A) Yes             B)        
1. Can haploid organisms reproduce using meiosis?            A) Yes             B)        No Explain your answer 2. The number of chromosomes in a diploid sexual species is 14. What is the exact probability that an individual of this species could produce by meiosis a gamete that includes all 7 chromosomes that the individual itself inherited from it's mother while excluding all 7 chromosomes inherited from its father? A) Zero B) 7/14 = 50% C) 1/2 7 D) 7 1/2 E) 1/7 (1 out of seven...
1.In the chart: A B C D +/+ 100% functional protein watery no disease +/- 50%...
1.In the chart: A B C D +/+ 100% functional protein watery no disease +/- 50% functional protein intermediate no disease -/- 0% functional protein thick disease What is in column A? Different genes Different phenotypes Different genotypes Different loci Different proteins 2. let's say SLC2A4 (encoding the insulin-dependent glucose transporter GLUT4) has two alleles: + (which encodes a functional product) and - (which encodes a non-functional product). If GLUT4 expression is necessary to not have diabetes, which of the...
1 Which event listed below occurs first in fertilization ? A the slow block to polyspermy...
1 Which event listed below occurs first in fertilization ? A the slow block to polyspermy B the cortical reaction C the entry of sperm DNA into the egg D the acrosomal reaction E fast block to polyspermy 2 Once an egg has been fertilized, what event(s) are crucial for preventing additional sperm from fertilizing the egg? A the acrosomal reaction B the fast block to polyspermy C both the cortical reaction and fast block to polyspermy D both the...
1) The rate at which genetic drift fixes and eliminates alleles depends on what factor(s)? Select...
1) The rate at which genetic drift fixes and eliminates alleles depends on what factor(s)? Select one: a. population size b. intensity of non-random mating c. initial allele frequencies d. both A and C 2) During a founder event, what process can dramatically shift allele frequencies in the founder population away from the frequencies in the source population? Select one: a. genetic drift b. migration and gene flow c. negative frequency dependent selection d. linkage 3) The loss of heterozygosity...
1) Koch’s postulates a. must be followed to prevent infectious disease b. are steps that must...
1) Koch’s postulates a. must be followed to prevent infectious disease b. are steps that must be followed to determine the cause of an infectious disease c. provide guidelines to prevent acids from being produced during wine making d. were used by Robert Koch in developing vaccines 2) The algal blooms that occur in Lake Erie and other bodies of water are primarily caused by a. Global warming b. Fertilizer run off from agricultural fields and residential areas c. Industrial...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT