
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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use the image to answer these two questions
- draw all possible metaphase I arrangements that would occur if this cell were undergoing meiosis. be sure to label the alleles as shown above
-draw all possible gametes that will result from this cell undergoing meiosis. again, be sure to label the alleles (there should be EIGHT total possbilities, please draw ALL of them)

Transcribed Image Text:The cell below has 2 sets of chromosomes. The larger chromosome bears the allele for wing
size (A or a allele) and the smaller chromosome bears the allele for eye color (R or r allele).
4.
а
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- please explain this question to me. Also, even though we get 96 in the second option, why is it wrong? help me pleasearrow_forwardHi, I'm having some trouble with this practice problem from my study guide. If anyone can explain it it would be very helpful! Sometimes nondisjunction will occur in a parent that has normal chromosome numbers and result in an offspring that has abnormal number of chromosomes. The phenotype of the affected offspring will often allow geneticists to determine in which parent and during which division of meiosis the nondisjunction occurred. In each of the examples below, assume the parents have a normal diploid chromosome complement. A man with the X-linked dominant condition “brown tooth enamel” and a woman with normal tooth enamel produce a son with brown tooth enamel. Let’s call the allele for brown tooth enamel “XB” and normal tooth enamel “Xb”. EXAMPLE 1: The parents in the family above produce another son, this time with two Y chromosomes and normal tooth enamel. In which parent did the nondisjunction occur? Explain and/or illustrate. Did nondisjunction occur at meiosis I or II?…arrow_forwardFor a plant cell, on a blank sheet of paper, make 1 drawing of each of the phases of Meiosis I and II. Identify 2 key occurrences of each phase.arrow_forward
- Match the stage of meiosis with the image.arrow_forwardWhich meiotic division(s) reduce(s) chromosome number (i.e., meiosis I, meiosis II, or both)? Explain your answer. Edit View Insert Format: Toold Tablarrow_forwardCaspar's genotype is HhRr. These genes are located on the same chromosome, so the haplotype is: H R h r For this problem, there is no recombination between the genes. Knowing this, draw for yourself how these chromosomes should align and separate during meiosis. Now, from the choices below, which gamete would represents a nondisjunction event in meiosis II? hr HhRr Hhr HHRRarrow_forward
- What type of gametes can be produced by simple non-disjunction of the sex chromosomes in a human male? Simple non-disjunction means that non-disjunction occurs in meiosis I or meiosis II, but not in both meiosis I and meiosis II. Choose all answers that are correct Group of answer choices 22, 0 24, YY 25, XXY 23, XX 23, XY 25, XXX 24, XY 24, XXarrow_forwardDuring metaphase I of meiosis, tetrads align along the metaphase plate independently of each other. Therefore, there is a random “shuffle” of maternal and paternal chromosomes in the resulting gametes.The following diagram demonstrates how this works in a diploid cell with four chromosomes . Because there are two pairs of chromosomes and each pair can align in one of two ways during metaphase I, the number of possible variations in the gametes produced is , or .For an organism that is , there are three pairs of chromosomes, so the number of possible variations in the gametes produced due to independent assortment in metaphase I is , or . In an organism with a haploid number of , how many possible combinations of maternal and paternal chromosomes can occur in its gametes? Select one: a. 72=49 b. 27=128 c.17=1 d. 214=16 384arrow_forward
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