The answer is rr. In a monohybrid cross, the phenotypic ratio is 3:1 for
dominant trait to recessive trait. Since the ration is 3:1 for round
seeds to wrinkled seeds, we can conclude that round seed is the dominant
trait. Let R be a dominant allele for round seed and r be a recessive
allele for wrinkled seed. The genotypes will be: RR (dominant homozygote
with round seeds), Rr (heterozygote with round seeds), and rr
(recessive homozygote with wrinkled seeds. Thus, only genotype rr is the
genotype of the wrinkled seeds.
Answer:
Yes
Explanation:
The candle can’t burn out so it can’t get to much fuel or it will dye and it can’t run out or it will die it also needs to have enough oxygen to survive
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Answer:
D. a vestigal structure
Explanation:
<em>The type of evidence for common descent that would include the whale's pelvic girdle is </em><em>vestigeal structure.</em>
<u>Vestigeal structures are small, degenerated and non-functional organs found in organisms which are believed to have been well developed and functional in their ancestors.</u>
The pelvic girdle in whales are considered to be vestigeal organs because they serve no known purpose and looks degenerated. Hence, they serve as evidence for common descent of mammals from the same ancestors.
The correct option is D.