Homework Answers
Ans) probability nof cross over between 2 Gene is proportional to the distance between the 2 genes.that is,the greater the distance between 2 genes ,the greater the probability that a crossover will occur between them during meiosis so option (a) is correct
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Crossing over refers to the exchange of genetic material between two homologous chromosomes. Which of the...
QUESTION 3 Crossing over refers to the pairing of homologous chromosomes during melosis a mutation that...
QUESTION 3 Crossing over refers to the pairing of homologous chromosomes during melosis a mutation that makes all alleles in homologous chromosomes identical an exchange of segments between the two members of a homologous chromosome pair during meiosis the loss of one or more chromosomes during melosis QUESTION 4 Place the following events of Meiosis I and Meiosis ll in the correct order: Duplicated chromosomes are separated Duplication of chromosomes Crossing over occurs Homologous chromosomes pair up - Homologous chromosomes...
1. Crossing over is important because it _____. a. allows the exchange of genes between homologous...
1. Crossing over is important because it _____. a. allows the exchange of genes between homologous chromosomes b. prevents variation in gametes c. holds tetrads together d. ensures that homologous chromosomes pair up 2. The M phase of mitosis and M phase of meiosis both occur after interphase. However, the two processes differ in the arrangement and behavior of their chromosomes. How? a. Homologous chromosomes pair up in mitosis, but not in meiosis. b. The pairing up of homologous chromosomes...
Chromosomes can exchange genetic information during a process called “crossing over.” This occurs when homologous chromosomes...
Chromosomes can exchange genetic information during a process called “crossing over.” This occurs when homologous chromosomes are lined up in pairs. When does this happen? View Available Hint(s) Chromosomes can exchange genetic information during a process called “crossing over.” This occurs when homologous chromosomes are lined up in pairs. When does this happen? a, anaphase II b, prophase I c, anaphase I d, metaphase II
Simulate meiosis by drawing Two pairs of chromosomes with crossing over Assume that two of the...
Simulate meiosis by drawing Two pairs of chromosomes with crossing over Assume that two of the genes are on chromosome 1, and one of the genes is on chromosome 2. Allow crossing over to occur between the two genes on the same chromosome. Also, are there multiple ways that the chromosomes could segregate to produce different results? Show them. Instructions: Set up your cell. The cell you start with should be: A diploid cell It should contain 2 pairs of...
Crossing over is one of the most important events in meiosis because __. A) homologous chromosomes...
Crossing over is one of the most important events in meiosis because __. A) homologous chromosomes are separated into different daughter cells B) the number of chromosomes allotted to each daughter cell must be halved C)sister chromatids must be separated into different daughter cells D) it produces new arrays of alleles on chromosomes and contributes to genetic diversity
You see a recombination frequency of 50% between two genes. Which of the following possibilities can...
You see a recombination frequency of 50% between two genes. Which of the following possibilities can you exclude? That the genes are located close together on the same chromosome That the genes are on different chromosomes O That the genes are assorting independently That the genes are located on the same chromosome, but very far apart Meiosis contributes to genetic diversity by: o Reducing the number of chromosomes for karyogamy (fusion of nuclei) with another gamete O Recombining homologous chromosomes...
13. Creighton and McClintock worked with homologous chromosomes physically exchange genetic information during cros...
13. Creighton and McClintock worked with homologous chromosomes physically exchange genetic information during crossing over and their model system to show that A) Peas B. Corn 14. While mapping two genes in Drosophila you observe 40 recombinants among 200 total A) 30 map units 15. Another name for a chromosome is C. Fruit flies D. Tobacco offspring. What is the distance between these genes? B. 20 map units C200 map units D. 6.67 map units , since it contains genes...
6.) During meiosis, when crossing-over occurs between two homologous chromosomes, it does not happen at a...
6.) During meiosis, when crossing-over occurs between two homologous chromosomes, it does not happen at a single point, but rather two points with a stretch of DNA in between. a. What are the two junction points called? b. What is the region between the two points called and what is different about this region compared to how double-stranded DNA usually is? c. If the region described in b.) is located within a gene and the two homologues have different alleles...
Crossing-Over in Meiosis Meiosis is a process of nuclear division that reduces the number of chromosomes...
Crossing-Over in Meiosis Meiosis is a process of nuclear division that reduces the number of chromosomes in new cells to half the number in the original cell. The parent cell is diploid (2n), and it begins meiosis with a replicated set of chromosomes. During meiosis, this parent cell Homologou will divide twice to create four haploid (1n) cells. pairs During prophase I of meiosis I, homologous pairs of chromosomes pair up and stick together to form tetrads through the process...
What is the relationship between linkage and crossing over? Group of answer choices Linkage produces more...
What is the relationship between linkage and crossing over? Group of answer choices Linkage produces more unique allelic combinations than crossing over. Genes that are linked never have crossing over occur between them. Crossing over increases the likelihood that two genes become linked. Crossing over can disrupt the physical linkage of two genes on a chromosome.
QUESTION 3 Crossing over refers to the pairing of homologous chromosomes during melosis a mutation that makes all alleles in homologous chromosomes identical an exchange of segments between the two members of a homologous chromosome pair during meiosis the loss of one or more chromosomes during melosis QUESTION 4 Place the following events of Meiosis I and Meiosis ll in the correct order: Duplicated chromosomes are separated Duplication of chromosomes Crossing over occurs Homologous chromosomes pair up - Homologous chromosomes...
You see a recombination frequency of 50% between two genes. Which of the following possibilities can you exclude? That the genes are located close together on the same chromosome That the genes are on different chromosomes O That the genes are assorting independently That the genes are located on the same chromosome, but very far apart Meiosis contributes to genetic diversity by: o Reducing the number of chromosomes for karyogamy (fusion of nuclei) with another gamete O Recombining homologous chromosomes...
13. Creighton and McClintock worked with homologous chromosomes physically exchange genetic information during crossing over and their model system to show that A) Peas B. Corn 14. While mapping two genes in Drosophila you observe 40 recombinants among 200 total A) 30 map units 15. Another name for a chromosome is C. Fruit flies D. Tobacco offspring. What is the distance between these genes? B. 20 map units C200 map units D. 6.67 map units , since it contains genes...
6.) During meiosis, when crossing-over occurs between two homologous chromosomes, it does not happen at a single point, but rather two points with a stretch of DNA in between. a. What are the two junction points called? b. What is the region between the two points called and what is different about this region compared to how double-stranded DNA usually is? c. If the region described in b.) is located within a gene and the two homologues have different alleles...
Crossing-Over in Meiosis Meiosis is a process of nuclear division that reduces the number of chromosomes in new cells to half the number in the original cell. The parent cell is diploid (2n), and it begins meiosis with a replicated set of chromosomes. During meiosis, this parent cell Homologou will divide twice to create four haploid (1n) cells. pairs During prophase I of meiosis I, homologous pairs of chromosomes pair up and stick together to form tetrads through the process...
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