Homologous recombination in yeast facilitates — The targeted replacement of a gene in a living cell.
Explanation : When for any reason single strand or double strand break occur in a DNA molecule of a living yeast cell, then the cell itself goes through homologous recombination machinery for error free repair of DNA lesions. In homologous recombination a holiday junction is formed between the complementary regions of homologous DNA strands which helps in targeted replacement of the damaged gene.
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Question 6 (1 point) Homologous recombination in yeast facilitates the segregation of genes during meiosis. O...
15 1 point Recombination occurs during the process of O Segregation Fertilization O Mitosis Meiosis Previous
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 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...
1. (2 pts) Homologous chromosomes a. come from different parents b. have the same genes c. may have different alleles d. have very similar DNA sequences e. all of the above f. none of the above 2. (3 pts) List the three ways that sexual reproduction increases the genetic variability of a population more than does asexual reproduction. 3. (2 pts) An organism has six independent (unlinked) genes and the following genotype: aaBbDdEEffag. How many different gametes could this organism...
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...
Which of the following is not one of the ways that meiosis can introduce variability into a population via sexual reproduction? meiosis never introduces genetic variation production of diploid gametes independent assortment along the metaphase plate crossing over random fertilization The role of meiosis in Mendel's law of segregation is that it allows crossing over to occur. it allows genes to be duplicated. it separates sister chromatids and exact copies of genes it separates homologous chromosomes and therefore gene alleles...
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Practice Using a Punnett Square. Punnett Squares are tools to identify outcomes known genotypes. They can be used to help infer probabilities of genotypes and from a particular cross. of possible crosses between individuals of phenotypes amongst offspring lele forms "A" and "a". A woman is heterozygous, so she can produce eggs with Consider a gene with all 9. and Write them across the top of the Punnett Square below the following...
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Question 23 (1 point) The A and B alleles in ABO blood types can give rise to an individual that is blog type AB. This specific blood type is an example of: A) multiple alleles B) epistasis C) codominance D) partial dominance Imagine the gene encoding the lac repressor was mutated so that lactose (more technically allolactose) no longer bound to the repressor. However, the lac repressor was still capable of binding DNA at the operator sequence....
25. Mendel's factors undergo segregation and independent assortment. How is this illustrated in the chromosomes during Meiosis I? 26. Explain how these inheritance patterns are considered non-Mendelian. Incomplete Dominance . Multiple Alleles • Codominance X-linked Linkage . Pedigrees - Genetic Disorders 27. What is non-disjunction and how does it affect the chromosome distribution during meiosis? 28. What is a karyotype and what does it allow you to do? 29. Fill in the circles and squares to illustrate the following inheritance...
(cach question: 1 point) 1) If you see a red leaf, what color(s) of light in the visible light spectrum is/are being reflected? A) red B) all colors except red C) all colors D) no colors Answer: 2) permit CO2 to enter the leaf and O2 to escape. A) Mesophyll cells B) Thylakoids C) Stomata D) Chloroplasts Answer: 3) Chlorophyll is found in which part of the plant cell? A) stroma B) cytoplasm C) thylakoid D) plasma membrane Answer: 4)...