The pedigree chart below shows the individuals in a family who exhibit a certain trait. based on the info in the chart, which of the following provides the best evidence that this is a recessive trait?

a. couple 3-4 in the 2nd generation produced children who are identical twins.

b. couple 1-2 in the second generation produced children who do show the trait.

c. couple 1-2 in the 1st generation produced children who do show the trait.

d. couple 3-4 in the 2nd generation produced children who do not show the trait.

answer: the answer is a: couple 3-4 in the 2nd generation produced children who do not show the trait. if it was a dominant trait, there would be a lot more children with said trait.

(happy to )

explanation:

check for the pregnancy rating of drug. if its class c or d see if other alternatives

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.