Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 11, Problem 12TYK
Discuss Concepts One of the human chromosome pairs carries a gene that influences eye color. In an individual human, one chromosome of this pair has an allele of this gene that contributes to the formation of blue eyes. The other chromosome of the pair has an allele that contributes to brown eye color (other genes also influence eye color in humans). After meiosis in the cells of this individual, what fraction of the nuclei will carry the allele that contributes to blue eyes? To brown eyes?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The following four questions refer to the picture below:
1) In meiosis, the homologous chromosomes are side by side. Are they side by side in mitosis?
2)In meiosis, each centromere has a spindle fiber attached only to one side. In mitosis, each centromere has a spindle attached to how many sides?
3) Look at what happened right after Metaphase in both processes. In mitosis, what has been separated homologous chromosomes or sister chromatids?
4) After Metaphase I in meiosis, what has been separated, homologous chromosomes or sister chromatids?
Truffles (Tuber borchi) have 2n=8 chromosomes. For the mitotic and meiotic stages below, draw the
chromosomes and chromatids, and give the number of homologous pairs, chromosomes, and
chromatids present. Be sure to differentiate homologous chromosomes by using size, shape, or
other labeling mechanism.
Metaphase of mitosis (
# homologous pairs
# chromosomes
# chromatids
Anaphase of meiosis II – draw and count chromosomes for only 1 cell (
# homologous pairs
# chromosomes
# chromatids
Mitosis produces 2 daughter cells that are identical to the starting cell. Explain how meíosis is different using
this diagram to help you.
1) How many cells are created through meiosis?
2) Describe the chromosomes in each gamete at the end of meiosis? Are the set of chromosomes in a gamete
identical to the starting cell like they are in mitosis? Are there the same number of chromosomes in each
gamete as the starting cell?
Starting cell's chromosomes:
1А, 1B, 2A, 2B
Interphase
After the S phase of interphase:
4 pairs of sister chromatids
1A 1A 1B 1B
2A 2A 2B 2B
Meiosis has 2 rounds of cell division
1A,
1A,
1B,
1B,
2A
2B
2A
2B
tv
MacBook Air
DII
DD
80
888
F9
F10
F6
F7
F8
F4
F3
*
#3
2$
%
&
8
9
3
4
E
T.
Y
F
G
J
K
* CO
R
Chapter 11 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 11.1 - How does the outcome to meiosis differ from that...Ch. 11.1 - Prob. 2SBCh. 11.1 - Prob. 3SBCh. 11.2 - Prob. 1SBCh. 11.2 - Consider an animal with six pairs of chromosomes;...Ch. 11.3 - Prob. 1SBCh. 11 - The chromosome constitution number of this...Ch. 11 - Which of the following is not associated with...Ch. 11 - Chiasmata: a. form during metaphase II of meiosis....Ch. 11 - If 2n is four, the number of possible combinations...
Ch. 11 - Prob. 5TYKCh. 11 - The DNA content in a diploid cell in G2 is X. If...Ch. 11 - Metaphase in mitosis is similar to what stage in...Ch. 11 - In the human sperm: a. there must be one...Ch. 11 - In plants, the adult diploid individuals are...Ch. 11 - Prob. 10TYKCh. 11 - Discuss Concepts You have a technique that allows...Ch. 11 - Discuss Concepts One of the human chromosome pairs...Ch. 11 - Prob. 13TYKCh. 11 - Prob. 14TYKCh. 11 - Prob. 15TYKCh. 11 - Prob. 1ITDCh. 11 - Prob. 2ITD
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Sketch a series of diagrams showing each of the following, making sure to end each series with haploid cells:(a) How a pair of alleles for a single locus segregate in meiosis(b) How the alleles of two unlinked loci assort independently in meiosis(c) How the alleles of two linked loci undergo genetic recombinationarrow_forwardIn fruit flies, chromosomal crossing over does not occur in meiosis in males, whereas crossing over does occur in meiosis in females. In fruit flies that are heterozygous at many genes (i.e. many maternal and paternal versions of the genes differ), at what stage would cells no longer be heterozygous for any gene during the process of meiosis? a)After the second meiotic division in males, and after the first meiotic division in females. b)After the second meiotic division in both males and females. c)After the first meiotic division in both males and females. d)After the first meiotic division in males, and after the second meiotic division in females.arrow_forwardVISUALIZE Sketch a series of diagrams showing each of the following, making sure to end each series with haploid cells: (a)How a pair of alleles for a single locus segregate in meiosis (b)How the alleles of two unlinked loci assort independently in meiosis (c)How the alleles of two linked loci undergo genetic recombinationarrow_forward
- In Drosophila melanogaster, a normal individual has 8 chromosomes. The species is diploid, having two sets of 4 chromosomes each. on rare occasions, an abnormal fruit fly can be produced with 12 chromosomes, having three sets of 4 chromosomes each. True/False: Such a fly is euploid. True Falsearrow_forwardLook at the chromosomes in the cell nucleus below, then mark the following statements true or false. A 1. C and D are sister chromatids False + 2. E and G are identical in sequence - True + 3. A and B are homologous to each other - True + 4. During crossing-over in meiosis, B and C could recombine and produce a chromosome with new allele combinations False + 5. Given the state of the chromosomes, what is probably about to happen? Fertilizationarrow_forwardSelect two that apply. Which of the following generate genetic diversity in meiosis? homologous chromosomes are separated during anaphase II homologous chromosomes align individually during metaphase II O bivalents align independently from other bivalents during metaphase I sister chromatids exchange genetic material during prophase I homologous chromosomes exchange genetic material during prophase I meiosis goes through two rounds of divisionarrow_forward
- Background Info Rainbow trout go through a unique genetic reproductive process. Female eggs are diploid, while male sperm are haploid. In the wild, when the sperm fertilizes an egg, the extra set of chromosomes is kicked out, resulting in a diploid offspring.Triploid trout are produced in the lab to provide sterile fish stock for lakes. Shortly after the eggs are fertilized, scientists place them in a warm water bath to prevent the extra chromosomes from being removed. The result is a triploid fish that cannot reproduce.Rainbow Trout: n = 30 Global warming is an issue affecting many species around the world. Warming has caused the temperatures in lakes and rivers to increase and stay elevated for longer periods of time. Question Select the FOUR numbers that describe the possible effects of global warming on the reproduction of rainbow trout in the wild and on biodiversity. The extra set of chromosomes remains. The extra set of chromosomes is removed. The offspring are diploid (2n).…arrow_forwardAsaparrow_forwardA sexually reproducing organism has the following phenotype DdEeAaTt: The D and E loci are on the same arm of a metacentric chromosome in cis configuration. The A locus is on the long arm of an acrocentric chromosome and the T locus is on a telocentric chromosome. There are no other chromosomes. Using diagrams, show a cell at metaphase of mitosis and show the results of mitosis. Ensure you show the location of the gene loci on the different chromosomes.arrow_forward
- Mitotic nondisjunction can occur, particularly in tumor cells. Assume a single nondisjunction event involving the X chromosome occurs in a cell undergoing mitosis in a human female. First, consider the daughter cell with the smaller number of chromosomes: How many total chromosomes will this cell have? How many X chromosomes will this cell have? Next, consider the daughter cell with the larger number of chromosomes: How many total chromosomes will this cell have? How many X chromosomes will this cell have?arrow_forwardA somatic cell has the genotype DdEe. All chromosomes in this organism are metacentric. Show metaphase and the results of mitosis if the D and E locus are linked on the same chromosome in trans configuration. A sexually reproducing organism has the following phenotype DdEeAaTt: The D and E loci are on the same arm of a metacentric chromosome in cis configuration. The A locus is on the long arm of an acrocentric chromosome and the T locus is on a telocentric chromosome. 2.1. What is the haploid number of this organism? 2.2. Using diagrams show a ceii at metaphase of mitosis and show the results of mitosis.arrow_forwardIdentify two ways meiosis contributes to genetic recombination? Why is it necessary to reduce the number of chromosomes in gametes? Blue whales have 44 chromosomes in every cell. Determine how many chromosomes you would expect to find in the following: Cachalot whale Egg cell Daughter cell from mitosis Daughter cell from mitosis IIarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
genetic recombination strategies of bacteria CONJUGATION, TRANSDUCTION AND TRANSFORMATION; Author: Scientist Cindy;https://www.youtube.com/watch?v=_Va8FZJEl9A;License: Standard youtube license