1. Let T mean tall and t mean short. If Claras mother is Tt and her father is it

1. Let T mean tall and t mean short. If Claras mother is Tt and her father is it what is the chance that shell be tall?A. 1 in 4B. 2 in 4C. 3 in 4D. Zero2. Which statement about Chargaffs rules is correct?A. In each species the amount of adenine equals the amount of guanine.B. In each species the amount of adenine equals the amount of thymine.C. In each species the amount of adenine equals the amount of cytosine.D. The amount of adenine guanine thymine and cytosine is the same in every species.3. Once the _______ checkpoint is passed in the cell cycles the cell is committedto division.A. MB. G2C. SD. G14. A change in a single DNA nucleotide is called aA. point mutation.B. mutagen.C. transposon.D. ligase