Exam 6: Genetic Linkage and Mapping in Eukaryotes

Algae and fungi spend the majority of their life cycle in the condition.

A testcross is always performed between the individual that is heterozygous for the genes to be mapped and an individual who is .

The process of recombination may rarely occur during mitosis.

In a given mapping experiment, you expect that incidence of double crossovers is 3.5%, but you only observe 2.5%. This can be explained by .

A map unit or centimorgan is equal to a 10% recombination frequency.

Which of the following defines the principle of linkage?

Map distance is the number of recombinant offspring divided by the total number of nonrecombinant offspring.

Experimental evidence that crossing over occurs between the X chromosomes of female Drosophila was provided by .

Crossing over is more likely to occur between genes that are on a chromosome.

The visual proof that chromosomes exchange pieces of information during crossing over was provided by .

The locus is the physical place of a gene on a chromosome.

In a chi-square test to determine if two genes are linked or assorting independently, what is the default (null) hypothesis that is tested?

Which of the following are necessary characteristics of an organism in order to easily construct a genetic linkage map?

The first observational evidence that genes may be inherited together rather than by simple Mendelian inheritance was provided by .

A map distance of 23.6 between two genes indicates which of the following?

Two genes that are located on the same chromosome are said to be .

In fungal gene mapping, the abbreviation NPD stands for new parental ditype.

The individual who is credited with producing the first genetic linkage map is .

A 2:2:2:2 pattern in an ordered octad ascus is an indication of first-division segregation.

You have calculated the interference value for a given mapping experiment to be 30%. What does this mean?