Prairie dogs once covered the expanses of the Great Plains. Their grazing made the grass more nutritious for the huge herds of bison, and a variety of snakes, raptors, and mammals   preyed on the rodents. In fact, the black- footed ferret (now endangered) specialized in prairie dog predation. Today, growing housing and agricultural developments have covered many prairie dog towns. Which of the following statements about prairie dogs is true?

#Question id: 4813

#Unit 8. Inheritance Biology

You perform the three different two-factor crosses (Cross 1: XY and xy, Cross 2: YZ and yz, and Cross 3: XZ and xz). Assume all crosses are between diploid flies homozygous for the alleles of these genes. You observe 7% recombinants in the first cross, 20% recombinants in the second cross, and 13% recombinants in the third cross. if cross between XyZ and xYz leads to which of the followining recombinant with double cross over .

#Question id: 4814

#Unit 8. Inheritance Biology

The frequency of recombinant gametes is half the frequency of crossing over between genes present on same chromosome is due to

#Question id: 4815

#Unit 8. Inheritance Biology

The cross over percentage between linked genes J and M is 20%, J and L is 35%, J and N is 70%, L and K is 15%, M and N 50%. The sequence of genes on the chromosome is

#Question id: 4816

#Unit 8. Inheritance Biology

A wild-type fruit fly heterozygous for gray body color and normal wings was mated with a black fly with vestigial wings to produced 1000 offspring. Recombination frequency between these genes for body color and wing type is 20 %. What number of offspring that is gray body colour and normal wing?

#Question id: 4817

#Unit 8. Inheritance Biology

How many different gametes can be formed by an organism with genotype AaBbCCddEe, If a, b and c gene are completely link?

#Question id: 4819

#Unit 8. Inheritance Biology

Plant with genotype AB/ab is test cross, two genes are linked are 10 map units apart. What proportion of progeny will have the genotype aabb?