science help anyone/??

Question

Which of the following is the best physical description of a gene?
A. A gene is a specific segment of DNA on a chromosome.
B. A gene consists of all of the DNA on a chromosome.
C. A chromosome is a segment of a gene.
D. Genes carry many chromosomes.

Suppose you cross a true-breeding blue flower with a true-breeding yellow flower. In the next generation, all of the flowers are blue. What does this outcome tell you about the allele for blue flowers?
A. The blue allele is sex-linked.
B. The blue allele is recessive to the yellow allele.
C. The blue allele is dominant to the yellow allele.
D. The blue allele shows incomplete dominance

Answer 1

The first answer is A. The second is C. If you need them explained ask. It is a long answer.

Answer 2

First one is A.

Blue is Dominant since all of the offspring from the first cross have blue flowers. So C is the answer.