If several pea plants with the genotype ttyy are crossed with pea plants with the genotype ttyy, what percentage of the offspring will be expected to have the ttyy allele combination?

75%

50%

25%

40%

If several pea plants with the genotype TTYy are crossed with pea plants with the genotype Ttyy then the percentage of the offspring will be expected to have the TTYy allele combination will be 25%.

Therefore the correct answer to the question is option c.

Explanation:

When the above said genotype are crossed with each other than the percentage of desired allele combination will be one fourth or 25%. This is shown by the punnet square.

Punnett square is said to be one of the best method for determining the allele of the next generation. By the help of it we can also find out the other combination of allele that is possible to happen.  

if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.