Definition of Nondisjunction

Q.

Crossing over occurs

1. Between sister chromatids

2. During Anaphase-I

3. During pachytene

4. During metaphase

Q. The failure of chromosomes to separate during cell division is known as .

1. aneuploidy
2. ploidy
3. non-disjunction
4. crossing over

Q.

The failure of chromosomes to separate during cell division is known as:

1. Aneuploidy

2. Ploidy

3. Non-disjunction

4. Crossing over

Q.

When an individual gets an extra chromosome from a parent the resulting condition is called ________.

1. Disjunction

2. Nondisjunction

3. Aneuploidy

4. Polyploidy