Significance of Crossing Over

Q. Two genes A and B present on same chromosome show $40\%$ recombination, then what will be the percentage of gamete $\left(aB\right)$ for the plant having genotype $AaBb$ in cis arrangement?

1. $40\%$
2. $70\%$
3. $20\%$
4. $15\%$

Q.

Is DNA recombination an advantage or disadvantage?

Q. The location at which crossing over occurs is known as

1. Kinetochore
2. Chiasmata
3. Centromere
4. Centriole

Q.

What happens in homolog pairing?

Q.

Crossing over results in ___.

1. Separation of completely linked genes

2. Separation of genes that are not linked

3. Separation of incompletely linked genes

4. None

Q.

Crossing over results in ___.

1. Separation of completely linked genes

2. Separation of genes that are not linked

3. Separation of incompletely linked genes

4. None

Q.

Crossing over results in recombinant traits.

1. True

2. False

Q. Two genes A and B present on same chromosome show $40\%$ recombination, then what will be the percentage of gamete $\left(aB\right)$ for the plant having genotype $AaBb$ in cis arrangement?

1. $40\%$
2. $70\%$
3. $20\%$
4. $15\%$

Q. The exchange of corresponding parts between non-sister chromatids of homologous chromosomes producing a new combinations is called .

1. linkage
2. fusion
3. crossing over
4. conjugation

Q. The location at which crossing over occurs is known as

1. centromere
2. kinetochore
3. chiasmata
4. centriole