The mouse haploid genome contains about 2.9 × 109 nucleotide pairs of DNA. Indicate how many nucleotide pairs of DNA are present in each of the following mouse cells: (a) somatic cell, (b) sperm cell, (c) fertilized egg,(d) primary oocyte, (e) first polar body, (f) secondary spermatocyte.

Consider a diploid organism with three non-homologous chromosomes 1.) Which image depicts a cell in Anaphase of mitosis? (Refer to picture 1) 2.) Which image depicts a cell in prophase 1 of meiosis? (Refer to picture 2)

The karyotypes shown here depict chromosomal abnormalities. Name the syndromes and if they are male or female?

Which of the following is a correct statement regarding mitosis and meiosis? A.)mitosis involves the generation of haploid cells B.)meiosis is used primarily for asexual reproduction C.)chromosomes are duplicated before mitosis but not meiosis D.)meiosis involves two sequential nuclear divisions

With relevance to sex determination in humans, discuss: i) X chromosome inactivation; and ii) Testicular feminization   Provide detail examples.

Assume that the diploid number of a certain species is four chromosomes, two large and two small (2n=4). a)  Of the following figures, which represents a 3n (triploid) cell in mitotic metaphase? b)  For each of the wrong answers from part (a) above, explain briefly why it cannot represent a triploid cell in mitotic metaphase.