Introduction to Genetic Analysis
11th Edition
ISBN: 9781464109485
Author: Anthony J.F. Griffiths, Susan R. Wessler, Sean B. Carroll, John Doebley
Publisher: W. H. Freeman
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Chapter 3, Problem 54P
Summary Introduction
To determine: The identification of the meiosis I or II stage in the given figure.
Introduction. The genetic material is all the living organism is the DNA (deoxyribonucleic acid). All the eukaryotes as well the prokaryotes have defined set of DNA sequence, which is inherited from one generation to another and codes for all the characters of the organism.
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In the plant, Haplopappus gracile there is one long pair and one short pair of chromosomes. In the diagrams
below, anaphase of individual cells in meiosis or mitosis in a plant that is heterozygous for the genes, A and
B (which are on separate chromosomes) are shown. The lines represent chromosomes or chromatids and the
points of the "V" are the centromeres. For each case, indicate if the cell represents meiosis I, meiosis II,
mitosis, or impossible situation. Provide a brief (one sentence) reason for your decision.
1.
A
A
a
В
a
B
9.
A
a
B
A
a
2.
а
В
В
a
A
a
B
9.
B.
a
A
3.
Rose plants are octoploid (octo = 8). Gametes from a rose plant contain 40 chromosomes. Indicate which of the following are TRUE statements.
Select 3 correct answer(s)
The gametes from a rose plant are diploid.
The basic chromosome number of a rose plant cell is 40.
The number of chromatids in a rose plant cell at G2 of the cell cycle is 160.
The number of chromatids in a rose plant cell at G2 of the cell cycle is 80.
The gametes from a rose plant are tetraploid.
The basic chromosome number of a rose plant cell is 10.
Rose plants are aneuploid.
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USING TWO DIFFERENT COLORS TO SIGNIFY THE MATERNAL AND PATERNAL CHROMOSOMES, DRAW THE RESPECTIVE
CELLS IN EACH LABELED PHASE OF MITOSIS AND MEIOSIS. THE CHROMOSOME NUMBER WILL BE "4" AND SHOULD BE
REPRESENTED AS TWO HOMOLOGOUS PAIRS. MAKE SURE YOU USE TWO DIFFERENT SIZES FOR EACH OF THE PAIRS.
BELOW EACH PHASE, BRIEFLY DESCRIBE WHAT HAPPENS.
MITOSIS
MEIOSIS I
Crossing over needs to be illustrated in
one of the homologous pairs and carried
through the remaining drawings
METAPHASE
ANAPHASE
METAPHASE I
MEIOSIS II
Accurate number of cells are needed
ANAPHASE I
METAPHASE II
ANAPHASE II
Chapter 3 Solutions
Introduction to Genetic Analysis
Ch. 3 - Prob. 1PCh. 3 - Prob. 2PCh. 3 - Prob. 4PCh. 3 - Prob. 5PCh. 3 - Prob. 6PCh. 3 - Prob. 7PCh. 3 - Prob. 10PCh. 3 - Prob. 11PCh. 3 - Prob. 12PCh. 3 - Prob. 13P
Ch. 3 - Prob. 14PCh. 3 - Prob. 15PCh. 3 - Prob. 16PCh. 3 - Prob. 17PCh. 3 - Prob. 18PCh. 3 - Prob. 19PCh. 3 - Prob. 20PCh. 3 - Prob. 21PCh. 3 - Prob. 22PCh. 3 - Prob. 23PCh. 3 - Prob. 24PCh. 3 - Prob. 25PCh. 3 - Prob. 26PCh. 3 - Prob. 27PCh. 3 - Prob. 28PCh. 3 - Prob. 29PCh. 3 - Prob. 30PCh. 3 - Prob. 31PCh. 3 - Prob. 31.1PCh. 3 - Prob. 31.2PCh. 3 - Prob. 31.3PCh. 3 - Prob. 31.4PCh. 3 - Prob. 31.5PCh. 3 - Prob. 31.6PCh. 3 - Prob. 31.7PCh. 3 - Prob. 31.8PCh. 3 - Prob. 31.9PCh. 3 - Prob. 31.10PCh. 3 - Prob. 31.11PCh. 3 - Prob. 31.12PCh. 3 - Prob. 31.13PCh. 3 - Prob. 31.14PCh. 3 - Prob. 31.15PCh. 3 - Prob. 32PCh. 3 - Prob. 33PCh. 3 - Prob. 34PCh. 3 - Prob. 35PCh. 3 - Prob. 36PCh. 3 - Prob. 37PCh. 3 - Prob. 38PCh. 3 - Prob. 39PCh. 3 - Prob. 40PCh. 3 - Prob. 41PCh. 3 - Prob. 42PCh. 3 - Prob. 43PCh. 3 - Prob. 44PCh. 3 - Prob. 45PCh. 3 - Prob. 46PCh. 3 - Prob. 48PCh. 3 - Prob. 49PCh. 3 - Prob. 50PCh. 3 - Prob. 51PCh. 3 - Prob. 52PCh. 3 - Prob. 53PCh. 3 - Prob. 54PCh. 3 - Prob. 57P
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- All of the following cells, shown in various stages of mitosis and meiosis, come from the same rare species of plant. a. What is the diploid number of chromosomes in this plant? b. Give the names of each stage of mitosis or meiosis shown. c. Give the number of chromosomes and number of DNA molecules per cell present at each stage.arrow_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 (2n=4) . 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 22 or 4.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 23 or 8. In an organism with a haploid number of 7, how many possible combinations of maternal and paternal chromosomes can occur in its gametes? a. 72=49 b. 27=128 c.17=1 d. 214=16 384arrow_forwardArabidopsis thaliana is a diploid plant model organism with 2n 10. Please select the number options to match the following number of copies of each gene an Arabidopsis thaliana 1 leaf cell has number of chromosomes an Arabidopsis thaliana leaf cell contains 1. two 2. five number of chromosomes an Arabidopsis thaliana gamete cell contains 3. ten pairs of homologous chromosomes an Arabidopsis thaliana 2 leaf cell containsarrow_forward
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