[ANSWER]Genetics Week 3 Assignment

Week 3 Assignment

TASK DESCRIPTION Genetics Week 3

Genetics Week 3 Assignment

1. What is a linkage group? If a diploid organism contains 20 linkage groups, how many chromosomes does the organism have in a cell?

2. Chromosomal aberrations are frequently caused by pieces of chromosomes breaking off from the main chromosomal body, which can lead to harmful effects. Fill in the following table. (The first one is completed for you as an example)

TypeDefinitionExamples or conditions seen in human
  DeletionA chromosome aberration in which a piece of a chromosome is absent.Cri-du-chat syndrome (part of chromosome 5 is deleted.)
   
   
   

3. Aneuploidy is a condition in which a person has either more or fewer chromosomes than the 46 that are normally found in humans. Down syndrome can be the result of aneuploidy. Aneuploidy can also cause cancers. For example, lymphocytic leukemia is the result of cells containing 3 sets of chromosome 12. What is the fundamental difference between an aneuploidy that might lead to cancer and one that results in Down syndrome?

4, A man with Klinefelter syndrome (47, XXY) is red-green color blind, which is an X-linked recessive disorder. His brother is normal with a 46, XY karyotype is also color blind. Both of their parents are not color blind. Assuming that no crossing over occurred in prophase I of meiosis, explain which parent and which X chromosome gave rise to the color-blind man with klinfelter syndrome, as well as where the nondisjunction occurred.

  1. Suppose one organism contains 2n=12 chromosomes. How many chromosomes would be present in a cell with the following chromosome mutations?
    a. Nullisomy
    b. Monosomy
    c. Trisomy
    d. Tetrasomy

[ANSWER PREVIEW Genetics Week 3]

The chromosomes that change position are 21 for 14 on the long arm of the two (Santaguida, & Amon, 2015). The type of aberration starts after there is a break at the center of the chromosomes where the short and long arms meet. Notably, the break may be unproportionable, and one chromosome would be huge, that is, metacentric, while the other portion would be too small and contain no genetic material….[Buy Full Answer for Just USD 9: 735 WORDS]

[SOLUTION DESCRIPTION Genetics Week 3]

Type: Essay

Word Count: 735

Grade/Mark: 85 (Distinction)

For More Details Go Home Page