Which of the following does NOT describe the macronucleus of a paramecium?

2 answers:

6 0

The answer is letter D. The macronucleus is not exchanged during conjugation. <span>It normally contains the working duplicates/copies of genes necessary to support an enormous cell. Macronucleus is formed by a direct division of the polyploid nucleus right after conjugation then followed by series of internal gene replication that is not oftenly occurring in micronucleuse.</span>

Taya2010 [7]2 years ago

3 0

D is the correct answer

You might be interested in

For constipation, which grain, fruit, legume and vegetable would you recommend (based on chart below)

tester [92]

Good sources of dietary fiber including fruits vegetables, legumes and whole grains are highly recommended when one has constipation. Therefore; For constipation; i would recommend legumes such as beans, peas, and Lentils; Vegetables including Brococoli, spinach, The whole grains such as oatmeal, chia seeds, or flaxseeds, fruits such as berries, pears, apples and dried fruits.

5 0

2 years ago

In a species of chickens, incomplete dominance between alleles for black (B) and white(w) feathers

MariettaO [177]

Answer:

1/2

Explanation:

This question involves a single gene coding for feather color in chickens. The black allele (B) is incompletely dominant over the white allele (W). This means that the allele B will not mask the phenotypic expression of allele W, hence, a third intermediate blue phenotype (BW) will be produced.

According to the question, if two blue chickens are crossed i.e. BW × BW, the gametes B and W will be produced by each parent. Using these gametes in a punnet square (see attached image), the following offsprings will be produced:

BB, BW and WW in the ratio 1:2:1

BB is black, BW is blue, WW is white. Hence, the probability of producing a blue chicken from this cross is 1/2.