Mating has occured between a normal colored mice whose genotype is C_,V_ and normal white mice with genotype cc,V_. The offsprings are as follows :

1) normal mice produced 29 colored

2) 10 colored, waltzing progeny.

Thus all offspring are normal. The genotype of the first parent should therefore be CC. Waltzing trait is produced. The V gene should therefore be heterozygous in both traits.

Hence The parent genotypes should be<u> (CC,Vv) and (cc,CV).</u>

In this case the approximate ratio in which the descendants are produced is 9:3:3:1. Hence genotypes of the parents are <u>(Cc,Vv) and (Cc,Vv). </u>

In this case the approximate ratio in which the offsprings are produced is 1:1:1. The genotypes of the parents are <u>(Cc,Vv) and (cc,vv). </u>

3 0

4 years ago

Now suppose a stream has a high volume but a low gradient. How might the

Alecsey [184]

The stream has a high volume but a low gradient will run through small rocks and small valley. It slowly runs all over the area. Even though it is low gradient its volume is high so it craves the area and then it changes the land.

<u>Explanation:</u>

Low gradient streams are less forced but it is wider as it slowly flows through the land. As it is separated from the high gradient stream.

Then it finds its path and creates it. It will slowly eradicate the soil or land or rock which present in its path.

Day by day the flow of large quantity of water will change the position of the land.

Before reaching the sea, it will cover up the river.

4 0

4 years ago