Recombination

Question 1

What are 3 sources of variation?

Answer 1

Creating new genes via mutation, new genetic material from another species and new genes from recombination.

Question 2

What are the 4 roles of recombination?

Answer 2

Creating new gene/allele combinations, creating new genes, integration of a specific DNA element and DNA repair.

Question 3

What are the 3 types of recombination?

Answer 3

homologous (between nearly identical sequences), non-homologous (between sequences with limited similarity) and illegitimate (DNA elements move from one site to another, little similarity)

Question 4

What does recombination achieve?

Answer 4

Diversity in a population.

Question 5

What occurs in single crossover (SXO)?

Answer 5

everything from the point of the crossover is changed.

Question 6

What happens in double crossover (DXO)?

Answer 6

everything between the two crossover points is changed.

Question 7

What happens in SXO if one piece of DNA is circular?

Answer 7

It forms a linear recombinant

Question 8

What happens in SXO if both pieces of DNA are circular?

Answer 8

A larger circle is created.