Homework Answers
Linked genes
- Are on the same DNA molecule
Reason
Linked genes are the genes which are present on the same chromosome/DNA and inherited together to the next generation. These genes are present very close to each other and don't undergo recombination during the process of Meiosis. These are two different genes and codes for two different traits. They are present on different locus and sometimes they can be mixed by crossing over or recombination
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Linked genes segregate independently from each another. are on the same DNA molecule. are genes that...
3P Question 19 Which of the following process(es) require DNA ligase function? Replication during S phase...
3P Question 19 Which of the following process(es) require DNA ligase function? Replication during S phase Recombination All of these require DNA ligases Nucleotide excision repair Base excision repair Question 20 3 pts The reason that genes on different chromosomes separate independently from each other is that: Different alleles of one gene separate into different daughter cells during melosis 1 Linked genes segregate independently of each other during melosis Alleles of one gene separate during Melosis il Sister chromatids separate...
1) To determine experimentally if two genes are linked, you would do mating studies and look...
1) To determine experimentally if two genes are linked, you would do mating studies and look at the rate of _________. Select one: a. mutation b. nondisjunction c. crossing over d. codominance 2) For the results of Mendel's dihybrid cross to be a 9:3:3:1 ratio of traits, what must be true? Select one or more: a. The sample size must be sufficiently large. b. The alleles of the two genes involved must exhibit a simple dominant/recessive relationship. c. The genes...
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...
Question 9 3 pts Although the MHC locus tends to be inherited as a unit called...
Question 9 3 pts Although the MHC locus tends to be inherited as a unit called a haplotype, in some cases a child receives a combination of two haplotypes from one of their parents. Which of the following is likely responsible for this? Crossing over outside of the MHC locus during meiosis Recombination during DNA damage repair within the MHC locus in the parent's somatic cells Inheritance of different haplotypes from each parent Crossing over within the MHC locus during...
Which of these statements is incorrect? Syntenic genes are located on the same chromosome. Independent assortment...
Which of these statements is incorrect? Syntenic genes are located on the same chromosome. Independent assortment results in recombinant chromosomes. You can reliably predict the relative genetic distance from genes’ physical distance on a chromosome. Linked genes are always syntenic. What is the relative genetic distance between two linked genes if the recombination frequency is 0.49? 0.49 cM 4.9 cM 49 cM 490 cM What statement best explains the distortion in Mendelian ratios observed by Bateson & Punnett in 1905?...
Linkage: Consider three genes, each with two alleles. An individual with genotype AAbbDD is crossed with...
Linkage: Consider three genes, each with two alleles. An individual with genotype AAbbDD is crossed with an individual whose genotype is aaBBdd. What are all the gamete types (gamete genotypes) that their offspring (AaBbDd) can produce? Draw chromosome diagrams if it helps you to answer the question. a. If the three genes are unlinked? b. If all three links are tightly linked (no crossing over)? c. If the first two genes are tightly linked (no crossing over), but the third...
Match the following pairs of sets by writing each number in the first column beside an...
Match the following pairs of sets by writing each number in the first column beside an appropriate unnumbered word or set of words in the second column. 1. Gregor Mendel Having one set of chromosomes 2. Recessive genes Have identical features 3. Heterozygous Father of genetics 4. Haploid Often caused by mutations 5. Diploid Contributes to variation 6. Crossing over Never expressed in the presence of a dominant allele 7. Homologous chromosomes Affect two or more traits 8. Punnett square...
1. Describe two kinds of recombination in eukaryotes. True of False 2._____ A recessive phenotype can...
1. Describe two kinds of recombination in eukaryotes. True of False 2._____ A recessive phenotype can be expressed by some progeny of a monohybrid cross. 3._____ Epistatic genes may result from dominant or recessive alleles. 4._____ At a single locus, a diploid individual may have more than two different alleles. 5. _____ A temperature-sensitive allele is an example of a genotype x environment interaction. 6. _____ All of the genetic material in a eukaryotic cell is found in the nucleus....
Reset 5 Identify the following extensions of the genotype to phenotype relationships that Mendel observed by...
Reset 5 Identify the following extensions of the genotype to phenotype relationships that Mendel observed by completing the sentences with the correct terms. When a single gene loous affects more than one trait, this is called Skipped When a single gene locus has more than two possible aleles, this is caled multiple alleles When the phenotype of heterozygotes is intermediate between the homozygotes, t this is called segregation When the phenotype of heterozygotes shows some aspects of both horory ones,...
1. 2. 13. Which statement explains why the recombination frequency between two genes is always less...
1.
2.
13.
Which statement explains why the recombination frequency between two genes is always less than 50%? Recombination cannot be more than 50% because chromosomes are only 50 map units in length. The genotype of the F, gametes will always be 50% parental gametes and 50% recombinant gametes. Genes with a recombination frequency near 50% are unlinked and have an equal likelihood of being inherited together or separately. F1 gametes always have 50% of their alleles from each parental...
3P Question 19 Which of the following process(es) require DNA ligase function? Replication during S phase Recombination All of these require DNA ligases Nucleotide excision repair Base excision repair Question 20 3 pts The reason that genes on different chromosomes separate independently from each other is that: Different alleles of one gene separate into different daughter cells during melosis 1 Linked genes segregate independently of each other during melosis Alleles of one gene separate during Melosis il Sister chromatids separate...
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...
Question 9 3 pts Although the MHC locus tends to be inherited as a unit called a haplotype, in some cases a child receives a combination of two haplotypes from one of their parents. Which of the following is likely responsible for this? Crossing over outside of the MHC locus during meiosis Recombination during DNA damage repair within the MHC locus in the parent's somatic cells Inheritance of different haplotypes from each parent Crossing over within the MHC locus during...
Match the following pairs of sets by writing each number in the first column beside an appropriate unnumbered word or set of words in the second column. 1. Gregor Mendel Having one set of chromosomes 2. Recessive genes Have identical features 3. Heterozygous Father of genetics 4. Haploid Often caused by mutations 5. Diploid Contributes to variation 6. Crossing over Never expressed in the presence of a dominant allele 7. Homologous chromosomes Affect two or more traits 8. Punnett square...
Reset 5 Identify the following extensions of the genotype to phenotype relationships that Mendel observed by completing the sentences with the correct terms. When a single gene loous affects more than one trait, this is called Skipped When a single gene locus has more than two possible aleles, this is caled multiple alleles When the phenotype of heterozygotes is intermediate between the homozygotes, t this is called segregation When the phenotype of heterozygotes shows some aspects of both horory ones,...
1.
2.
13.
Which statement explains why the recombination frequency between two genes is always less than 50%? Recombination cannot be more than 50% because chromosomes are only 50 map units in length. The genotype of the F, gametes will always be 50% parental gametes and 50% recombinant gametes. Genes with a recombination frequency near 50% are unlinked and have an equal likelihood of being inherited together or separately. F1 gametes always have 50% of their alleles from each parental...
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