Question

14.

Which is known from meiosis but not mitosis?

Select one:

S phase of cell cycle

Centrosome and kinetochore

Metaphase plate and sister chromatids

Chiasma and bivalent

G1 and metaphase plate

21.

This would be a good example of incomplete dominance:

Select one:

color blind condition caused by a recessive allele on a sex chromosome

pink flower from cross of a red and white flower

short flower caused by a recessive allele

human height

red flower caused by a dominant allele

22.

An increase in average height in humans over the last several decades illustrates that __________ is important to consider.

Select one:

sex-linked alleles

incomplete dominance

environment

maternal inheritance

epistasis

Answer 1

14)meiosis and mitosis both are cell division types but meiosis has chiasma and bivalent because nonsister chromatids of homologous chromosomes will come Into synapsis and will form chiasma and bivalent but mitosis don't have double chromosomes that why it lack this.

21) incomplete dominance means both the alleles will be incompletely dominated and some other trait will be developed , so here the example will be pink flower from cross of a red and white flower.

Other are not because they is completely dominant .

22)an increase in average height in humans over the last several decades illustrates that environment is important. To consider.

Because sex linked allele will not so any change in their trait like height .

Maternal effect is also like inheritance.

Epistatis is also inherited but environment can affect this epigenetic and can increase the length for decades.