BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 13, Problem 6A
Summary Introduction
The biological event taking place in a cell undergoing meiotic division in which a pair of homologous chromosomes or the sister chromatids fail to separate is called non-disjunction.
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Students have asked these similar questions
A) At the end of meiosis I, how many chromosomes are in each cell?
B) Are the cells haploid or diploid?
C) Are the chromosomes of the meiosis I products replicated or nonreplicated?
D) During which phase in meiosis I would crossing over have occurred?
a. What phase of meiosis is this cell undergoing?
b. Identify the 3 things that are incorrect in terms of this cells structure and organization?
c. Would this cell produce viable gametes? Why or why not.
At the end of meiosis in humans, four gametes are produced that are:
A.
Genetically identical to each other and to the parent cell
B.
Genetically identical to each other but genetically different from the parent cell
C.
Genetically different from each other and the parent cell
D.
Genetically identical to the parent cell from different from each other
Chapter 13 Solutions
BIOLOGY
Ch. 13.1 - Describe sex-linked inheritance in fruit flies.Ch. 13.1 - Prob. 2LOCh. 13.2 - Prob. 1LOCh. 13.2 - Explain the genetic consequences of dosage...Ch. 13.3 - Prob. 1LOCh. 13.4 - Prob. 1LOCh. 13.4 - Explain the relationship between frequency of...Ch. 13.4 - Prob. 3LOCh. 13.5 - Prob. 1LOCh. 13.5 - Prob. 2LO
Ch. 13.5 - Prob. 3LOCh. 13 - Inquiry question Mendel did not examine plant...Ch. 13 - What would Mendel have observed in a dihybrid...Ch. 13 - Prob. 2DACh. 13 - Why is the white-eye phenotype always observed in...Ch. 13 - In an organisms genome, autosomes are a. the...Ch. 13 - What cellular process is responsible for genetic...Ch. 13 - The map distance between two genes is determined...Ch. 13 - How many map units separate two alleles if the...Ch. 13 - How does maternal inheritance of mitochondrial...Ch. 13 - Which of the following genotypes due to...Ch. 13 - Prob. 1ACh. 13 - As real genetic distance increases, the distance...Ch. 13 - Down syndrome is the result of trisomy for...Ch. 13 - Genes that are on the same chromosome can show...Ch. 13 - The A and B genes are 10 cM apart on a chromosome....Ch. 13 - Prob. 6ACh. 13 - Color blindness is caused by a sex-linked,...Ch. 13 - Assume that the genes for seed color and seed...Ch. 13 - A low frequency of calico cats are male (about...
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- a. If cell division during gametogenesis is non-meiotic, what is its consequence to the future generations of diploid organisms? b. How does non-disjunction in meiosis lead to numerical chromosomal aberration?arrow_forwardwhich of these could lead to the mistake evident in the karyotype? A) a failure of cytokinesis after meiosis I in gamete formation B) a nondisjunction in meiosis II in gamete formation C) crossing over in meiosis ! in gamete formation D) fertilizaton by two sperm in zygote formationarrow_forwardIt is possible that an alternative mechanism for generating germ cells could have evolved. Consider meiosis in a germ cell precursor (a cell that is diploid but will go on to make gametes). If the S phase were skipped, which meiotic division (meiosis I or meiosis II) would no longer be required?arrow_forward
- Aneuploidies are deleterious for the individual because of what phenomenon? a. nondisjunction b. gene dosage c. meiotic errors d. X inactivationarrow_forwardIn human spermatogenesis, mitosis of a stem cell gives rise to one cell that remains a stem cell and one cell that becomes a spermatogonium. Draw four rounds of mitosis for a stem cell and label; the daughter cells. For one spermatogonium, draw the cells it would produce from one round of mitosis followed by meiosis. Label the cells, and label mitosis and meiosis. What would happen if stem cells divided like spermatogonia?arrow_forwardA. In the beginning of meiosis II, each chromosome is duplicated and attached. These chromosomes are called? _______ B. In meiosis, the process of homologous chromosomes lining up together side-by-side is called ___________arrow_forward
- A diploid organism produces four gametes from one parent cell through the process of meiosis. Two gametes are found to have 7 chromosomes and two gametes are found to have 5 chromosomes. A) Is this the expected number of chromosomes that would be found in each gamete following a normal cycle of meiosis? If yes, explain why. If no, explain why not and describe how the gamete situation described above occurred. B) Determine the number of homologous chromosome pairs that the original parent cell contained, before meiosis began. Explain how you determined this value.arrow_forwardWhich of the following is a TRUE statement regarding the outcome of meiosis? A. In meiosis, one diploid cell (2n) can produce 2 haploid cells in males (1n). B. In meiosis, four haploid cells (1n) can produce 2 diploid cells (2n) in males. C. In meiosis, one diploid cell (2n) can produce up to 4 haploid cells (1n) in males. D. In meiosis, one diploid cell (2n) can produce 2 diploid cells (2n) in females.arrow_forwardIf the 2n chromosome number of an organism is 12: (a) what is the probability of having a spermatid with equal number of maternal and paternal chromosomes? (b) of a polar body containing at least two paternal chromosomes.arrow_forward
- A diploid male organism has two homologous chromosomes. A and B are from its maternal parent, while A’ and B’ are from its paternal parent. Draw the chromosomes at the following stages: a, anaphase of mitosis b. anaphase of the first meiotic division c, anaphase of the second meiotic division If the same chromosomes were involved in meiosis in a female, would the kind of egg nuclei produced be different from the sperm nuclei? Why?arrow_forwardimagine a giraffe whose diploid is 30. A)Under what circumstances would the giraffe go through a process of meiosis? . b) what will be the final result of this meiosis for the giraffe (# of cells + # of chromosomes/cells)arrow_forwardIn a zygote that begins with a complement of two homologous chromosomes pairs, A and a, and B and b: a. What chromosome compliments would you find in each somatic cells during growth? b. What combinations chromosomes would you expect to find in the gametes if the individual becomes an adult?arrow_forward
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