Homework Answers
12. B) II
During anaphase II, the sister chromatids of each duplicated chromosome are pulled apart. They then move toward opposite ends of the cells.
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The drawings show a single pair of homologous chromosomes as they might appear during various stages...
1. Draw TWO PAIRS of metacentric homologous chromosomes as they would appear, if they could be...
1. Draw TWO PAIRS of metacentric homologous chromosomes as they would appear, if they could be seen, during of the cell cycle. Indicate centromeres with a small circle. For one pair of homologs, place the allele on one chromosome and the allele a on the other chromosome. For the other pair of homologs place the allele on one chromosome and the alleleb on the other chromosome. 2. Draw the same chromosomes as they would appear at the end of prophase...
The following figure shows a cell containing a pair of homologous chromosomes. The alleles for the...
The following figure shows a cell containing a pair of
homologous chromosomes. The alleles for the F gene are indicated on
each chromosome. Which of the following most accurately represents
the configuration of chromosomes within the cell following DNA
replication, prior to meiosis?
Select one:
a.
b.
c.
d.
Which term is used to describe a pair of similar chromosomes in
a cell:
Select one:
a. bifurcates
b. homologous
c. chromatids
d. replicants
Which of the following statements is TRUE...
alagy and Early Develapment Leberatory 2. Identify Homologous Chromosomes and Sister Chromatids in appropriate phases. What...
alagy and Early Develapment Leberatory 2. Identify Homologous Chromosomes and Sister Chromatids in appropriate phases. What are homologous chromosomes? Are they present in all cells? If not, which cells lack homologous chromosomes? Are they present in all stages of mitosis? Are they present in all stages of Meiosis 1? Meiosis II? How do the terms haploid and diploid relate to the presence/absence of homologous chromosomes? What are sister chromatids? During what phase of the cell cycle do sister chromatids form?...
Homologous chromosomes pair along their length during prophase 1 of meiosis.
Question 36 Homologous chromosomes pair along their length during prophase 1 of meiosis. While two homologues are paired, genetic exchange may occur between them in a process called _______ syngamy nondisjunction independent assortment crossing over Question 37 At the end of meiosis II, there are _______ 2 haploid daughter cells that are genetically different 4 haploid daughter cells that are genetically identical 4 haploid daughter cells that are genetically different 2 diploid daughter cells that are genetically identical 4 diploid daughter cells that are genetically differentQuestion 38 When do homologous chromosomes separate from...
Number of Chromosomes in Human Cell at Difference Stages of Melosis Identify the number of chromosomes...
Number of Chromosomes in Human Cell at Difference Stages of Melosis Identify the number of chromosomes in a typical human GERM cell during each stage of meiosis. For each stage, choose either 23 or 46 chromosomes. - Prophase - Metaphase 1 Anaphase - Telophase A 23 - Prophase II B. 46 - Metaphase II - Anaphase 11 - Telophase 11
Simulate meiosis by drawing One pair of chromosomes and no crossing over Instructions: Set up your...
Simulate meiosis by drawing One pair of chromosomes and no crossing over Instructions: Set up your cell. The cell you start with should be: A diploid cell It should contain 1 pair of homologous chromosomes It should be in G1 of the cell cycle, before DNA replication occurs Be sure to show 2 genes that are both heterozygous . Go through the steps of meiosis. Be sure to show and label these in your pictures: Label homologous chromosomes and sister...
1. Draw out ALL of the stages of Mitosis AND Meiosis (I and II). Use at...
1. Draw out ALL of the stages of Mitosis AND Meiosis (I and II). Use at least 3 homologous pairs. 2. Label each stage and the hallmark of that stage. Show how chromosomes align and segregate 3. Show the points (indicate in drawing where possible) where genetic diversity is introduced AND how it contributes to diversity (Assortment of chromosomes, Random fertilization, Crossing-over between non-sister chromatids) How does trisomy 21 occur? During which stages? Indicate on your drawing for #1
underers meiosis, how many cells will result, 12) If a eukaryotic cell has 20 chromosomes and...
underers meiosis, how many cells will result, 12) If a eukaryotic cell has 20 chromosomes and and how many chromosomes will they contain? A) 4 cells, each with 20 chromosomes B) 4 cells, each with 10 chromosomes C) 2 cells, each with 10 chromosomes D) 2 cells, each with 20 chromosomes Answer: 13) Crossing over occurs during which stage of meiosis? A) telophase I B) metaphase II C) anaphase II D) prophase II E) prophase I Answer: 14) Which of...
9-6 M. A. Merritt, 2016 1511 Lab Exercise #9 PROCEDURE 2: Simulation of the stages of...
9-6 M. A. Merritt, 2016 1511 Lab Exercise #9 PROCEDURE 2: Simulation of the stages of Meiosis 1) To simulate synapsis, take the two homologous pairs of lona chromosomos and place one on top of the other. Do the same with the #2, medium length chromosomes and then the # 3 , short chromosomes., Fill in the sketch for PROPHASE 1 below, illustrating synapsis. Even though crossing over occurs in nature, DO NOT add CROSSING OVER to your sketch. After...
The F1 generation is all yellow chromosomes, with just two homologous pairs, making n-2 (haploid) and...
The F1 generation is all yellow
chromosomes, with just two homologous pairs, making n-2 (haploid) and 2n -4 (diploid). Two unlinked gene loci affect flower color in this species. At the P locus found on the larger of the two chromosome pairs, the dominant P allele causes pigment to be deposited in the petals. The recessive p allele. when homozygous, results in no pigment being placed in the petals, leading to flowers with white petals. The Y locus, found on...
1. Draw TWO PAIRS of metacentric homologous chromosomes as they would appear, if they could be seen, during of the cell cycle. Indicate centromeres with a small circle. For one pair of homologs, place the allele on one chromosome and the allele a on the other chromosome. For the other pair of homologs place the allele on one chromosome and the alleleb on the other chromosome. 2. Draw the same chromosomes as they would appear at the end of prophase...
The following figure shows a cell containing a pair of
homologous chromosomes. The alleles for the F gene are indicated on
each chromosome. Which of the following most accurately represents
the configuration of chromosomes within the cell following DNA
replication, prior to meiosis?
Select one:
a.
b.
c.
d.
Which term is used to describe a pair of similar chromosomes in
a cell:
Select one:
a. bifurcates
b. homologous
c. chromatids
d. replicants
Which of the following statements is TRUE...
alagy and Early Develapment Leberatory 2. Identify Homologous Chromosomes and Sister Chromatids in appropriate phases. What are homologous chromosomes? Are they present in all cells? If not, which cells lack homologous chromosomes? Are they present in all stages of mitosis? Are they present in all stages of Meiosis 1? Meiosis II? How do the terms haploid and diploid relate to the presence/absence of homologous chromosomes? What are sister chromatids? During what phase of the cell cycle do sister chromatids form?...
Number of Chromosomes in Human Cell at Difference Stages of Melosis Identify the number of chromosomes in a typical human GERM cell during each stage of meiosis. For each stage, choose either 23 or 46 chromosomes. - Prophase - Metaphase 1 Anaphase - Telophase A 23 - Prophase II B. 46 - Metaphase II - Anaphase 11 - Telophase 11
underers meiosis, how many cells will result, 12) If a eukaryotic cell has 20 chromosomes and and how many chromosomes will they contain? A) 4 cells, each with 20 chromosomes B) 4 cells, each with 10 chromosomes C) 2 cells, each with 10 chromosomes D) 2 cells, each with 20 chromosomes Answer: 13) Crossing over occurs during which stage of meiosis? A) telophase I B) metaphase II C) anaphase II D) prophase II E) prophase I Answer: 14) Which of...
9-6 M. A. Merritt, 2016 1511 Lab Exercise #9 PROCEDURE 2: Simulation of the stages of Meiosis 1) To simulate synapsis, take the two homologous pairs of lona chromosomos and place one on top of the other. Do the same with the #2, medium length chromosomes and then the # 3 , short chromosomes., Fill in the sketch for PROPHASE 1 below, illustrating synapsis. Even though crossing over occurs in nature, DO NOT add CROSSING OVER to your sketch. After...
The F1 generation is all yellow
chromosomes, with just two homologous pairs, making n-2 (haploid) and 2n -4 (diploid). Two unlinked gene loci affect flower color in this species. At the P locus found on the larger of the two chromosome pairs, the dominant P allele causes pigment to be deposited in the petals. The recessive p allele. when homozygous, results in no pigment being placed in the petals, leading to flowers with white petals. The Y locus, found on...
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