Aperson that is heterozygous type ab (ab) marries a person that is heterozygous type a (ao). what is the probability that their potential offspring will be type a?

a. 0%

b. 25%

c. 50%

d. 75%

e. 100%

The correct option is B. 25 %

Explanation:

 A heterozygous type can be described as the type in which both the alleles of a gene are different. If both the alleles of a gene are similar in an organism, then the person is said to be homozygous for the trait.

In the above question, two heterozygous parents are to be cross- bred to check the probability of them producing homozygous alleles (AA).

A punnet square made will show the following results:

       A     O

A     AA    AO

B    BA     BO

Hence, there will be 25% chance that the offspring produced could be homozygous AA.

answer: the answer is b

increase soil erosion                                             reduce soil erosion

cattle grazing                                                         hydroseeding

deforestation                                                         contour plowing

                                                                                planting vegetation

plant roots basically hold the top soil

together and stop soil erosion because

in such situation top soil is not removed

during flood but cattle grazing causes

soil erosion because cattle consume the

grasses and herbs and top soil is exposed.

same situation occurs because of

deforestation, the trees and plants are cut

down to expose top soil which causes soil

erosion