4. Why do you use non-sister chromatids to demonstrate crossing over? 5. What combination of alleles could result from a crossover between BD and bd chromosomes? 6. How many nuclei are present at the end of meiosis II? How many chromosomes are in each?

Q: Down Syndrome (trisomy 21) is caused by an error in meiosis which results in the presence of three…

A: Meiosis and mitosis Meiosis is the reductional division in which the parental cells divide to form a…

Q: What happens during crossing over? Why is “recombination” an alternative term for what happens…

A: Recombination, sometimes referred to as crossing over is a crucial genetic process that takes place…

Q: 2. In the cells below, draw the two possible arrangements of Abdul's sex chromosomes and the…

A: The meiosis is the cell division process by which a diploid (2n) cell divides it's nucleus twice and…

Q: 3. RR and Rr carrots are orange, and rr carrots are white. But in an Rr carrot, a rare mitotic…

A: rr is the gene responsible for the white phenotype. first, the cells go in the g0 phase after that…

Q: Use the following images to answer the next two ques 5 6 ............. ******* S : 3 Stage 8 in the…

A: There are two types of cell division: mitosis and meiosis. Cell division happens when a parent cell…

Q: An organism has alleles G1 and G2 on one pair of homologous chromosomes, and it has alleles S1 and…

A: During the time of cell division , parent cell undergo splitting and produce new cells . Cell…

Q: Picture a scenario where the maternal and paternal chromosomes randomly align all on the same side…

A: ChromosomesThese are thread-like structures that are present in the nucleus of cells. They…

Q: 6. The incidence of Down syndrome will be very high(somewhat less than 50%) among the offspring of…

A: Chromosomal disorders occur when there is a change in chromosome number or chromosome structure.…

Q: 17. A certain (hypothetical) organism is diploid, has either blue or orange wings as the consequence…

A: Genetics is the study of hereditary characters from one generation to another generation. In other…

Q: 22. Identify the stage of meiosis. Why is this stage critical to human development?

A: The cell is the basic structural and functional unit of the body. The chromosomal theory of…

Q: 5. Consider a single diploid cell about to go through meiosis. It has 4 centromeres. a. How many…

A: Cell division known as meiosis takes place in sexually reproducing animals. It includes the…

Q: Homologous chromosomes migrate to opposite poles during: O Anaphase II of meiosis O none of the…

A: Introduction :- Chromosomes are formed during prophase I during the condensing of the DNA and…

Q: Nondisjunction of one set of sister chromatids at mitosis anaphase produces daughter cells that are:…

A: The process by which two sets of chromosomes migrate in the same pole during segregation (gamete…

Q: 10. Nondisjunction of one chromosome at meiosis I in the mother can give rise to which of the…

A: Nondisjunction refers to the failure of chromosomes to separate properly during cell division,…

Q: compared to an organism that reproduces asexually. What process that occurs during meiosis is…

A: There are two types of cell division and they are mitosis and meiosis. Meiosis is also called the…

Q: 1.What happens during anaphase in mitosis, meiosis I, and meiosis II? What happens if the steps you…

A: Cell division is the process by which a parent cell divides into two or more daughter cells each…

Q: A diploid cell with three pairs of homologous chromosomes is shown on the left. Each letter…

A: A phase of cell division known as metaphase (mitosis or meiosis). Individual chromosomes are…

Q: The gene associated with the recessive disorder hemophilia is on the X chromosome, where h is the…

A: Meiosis The process of reductional cell division by which haploid gametes are formed.

Q: Explain how nondisjunction in meiosis is responsible for chromosome abnormalities such as Down…

A: Meiosis is the phenomeon that is well known term and usually discreibe in which diploid cells divide…

Q: Draw a cell in anaphase I of meiosis with: a. 3 pairs of homologous chromosomes: #1a and #1b, #2a…

A: Meiosis is a type of cell division that produces four gamete cells by halving the number of…

Q: 3. If an organism's gametes contain 25 chromosomes, how many chromosomes will their somatic (body…

A: According to Bartleby's Guideline when there are multiple questions, we are allowed to answer one.…

Q: Why are organisms that have only a single set of chromosomes (haploid) often more favorable for…

A: NOTE-"As per our honor code, we are authorized to answer only one question at a moment. As you have…

Q: Older mothers are at greater risk of giving birth to Down syndrome children because: 1. Higher…

A: Since older eggs have a higher risk of incorrect chromosome division, a woman's chances of having a…

Q: .Each individual chromosome is composed of _______

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: . A nondisjunction occurs in the sex chromosomes of a male mouse. What ratio of sex chromosome…

A: Nondisjunction occurs when sister chromatids and homologous chromosomes fail to separate from each…

Q: Sketch the four gametes produced by a CROSSOVER between C and D and label whether or not each gamete…

A: Inversion - An inversion is a chromosome rearrangement in which a segment of a chromosome is…

Q: 2n=46 2. 3. MeioticStage: MeioticStage: Diploid no: Haploid no: Diploid no: Haploid no:

A: Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half…

Q: 5 The short legged flying weasel has a color gene with two alleles: purple and red. It also has a…

A: Mitosis and meiosis are two types of cell division. Mitosis is required for cell growth and repair…