MULTIPLE CHOICE QUESTION Are a majority of the problems associated with down syndrome a result
of an over or under expression of chromosome 21?
under
over

In a classic experiment using pea shape, mendel conducted two separate genetic crosses. in the first cross the parent plants were “true breeding” for pea shape; one had round peas ( r )and the other had wrinkled (r). the first cross produced a filial 1 generation of all round peas. in the second cross, mendel bred plants from the filial 1 generation. this cross produced different results. out of approximately 1000 plants, about 75% were round and 25% were wrinkled.

In "the pig," what is the main effect that the piglet initially has on kibuka?

Which level of taxonomy has the fewest organisms?