Select all the correct answers. Snakes and lizards are reptiles. Both organisms have pelvic organs, even though snakes don’t have hind legs. What are the best explanations for this situation?

1. Snakes evolved from lizards, and the hind legs are vestigial in nature.

2. Snakes and lizards share a common ancestor.

3. Snakes and lizards belong to same species.

4. Lizards evolved from snakes, which lost their hind legs during evolution.

5. Lizards and snakes don’t share a common ancestor.

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2. in dragons, a gene on chromosome 1 codes for wing color and a gene on chromosome 2 codes for body color. draw out the stages of meiosis for these two chromosomes from a dragon that is heterozygous for both traits. define your alleles. what are all the possible allele combinations of the gametes produced?

How does this experiment explain why it is often milder in areas such as coastal maryland while areas such as kansas or iowa have more extremes in temperature

Duchenne muscular dystrophy is a serious condition caused by a recessive allele of a gene on the human x chromosome. the patients have muscles that weaken over time because they have absent or decreased dystrophin, a muscle protein. they rarely live past their twenties. how likely is it for a woman to have this condition? a) women can never have this condition.b) one-fourth of the daughters of an affected man would have this condition.c) one-half of the daughters of an affected father and a carrier mother could have this condition.d) only if a woman is xxx could she have this condition.