Why are chromosomal abberations considered to have less significance than gene mutations for subsequent generations?

Genetic disorders can be caused by __________. a. gene mutations b. changes in chromosome structure c. changes in chromosome number d. all of the above

Can haploid cells divide by mitosis? by meiosis?

List and briefly describe the three processes that lead to variation in offspring with the same parents.

How do organisms with haploid-dominant life cycles ensure continued genetic diversification in offspring without using a meiotic process to make gametes?

Why dont genetic markers on the Y chromosome undergo recombination? Why is this lack of recombination a necessity for these markers to be used in tracing migrations?

Figure 7.2 If a mutation occurs so that a fungus is no longer able to produce a minus mating type, will it still be able to reproduce? Figure 7.2 (a) In animals, sexually reproducing adults form haploid gametes from diploid germ cells. (b) Fungi, such as black bread mold (Rhizopus nigricans), have haploid-dominant life cycles. (c) Plants have a life cycle that alternates between a multicellular haploid organism and a multicellular diploid organism. (credit c fern: modification of work by Cory Zanker; credit c gametophyte: modification of work by Vlmastra/Wikimedia Commons)

In the following diagram, designate each daughter cell as diploid (2n) or haploid (n).

Variations in Chromosome NumberAneuploidy Describe the process of nondisjunction and explain when it takes place during cell division.

Given the karyotype shown at right, is this a male or a female? Normal or abnormal? What would the phenotype of this individual be?