The leaves of many species are able to bend toward the sun during its progress across the sky, a phenomenon known as

#Question id: 4761

#XL - R Botany

which of the following statements about a lethal allele is not correct?

#Question id: 4762

#XL - R Botany

a semilethal allele is an example of which of the following extensions of mendelian genetics?

#Question id: 4763

#XL - R Botany

in a rare blood type referred to as the bombay phenotype, individuals are unable to attach the a or b antigens to their red blood cells. individuals that are homozygous recessive for gene "h" have the bombay phenotype and their blood type is type "o" regardless of their abo genotype. this is an example of what extension of mendelian inheritance?

#Question id: 4765

#XL - R Botany

The recessive mutant allele that causes cystic fibrosis is much more frequent in Caucasians population than in other world populations. Some scientists believe heterozygotes must have had a survival advantage during plagues such as cholera that occasionally swept through this population. What concept does this illustrate?

#Question id: 4768

#XL - R Botany

A trait that appears to be dominant in one sex but recessive in the other is called:

#Question id: 4781

#XL - R Botany

Two non allelic gene P and Q governed  Glume color in sorghum.

P= blakish purple          

Q = raddish purple (dependent over P gene )

If heterozygous Raddish purple were cross with homozygous brown color .What are phenotypic ratio of  progeny?