Nuclear Microinjection

Q. In humans, male germs cells differentiate into _____ at the end of first meiotic division.

1. Spermatid
2. Spermatogonium
3. Secondary spermatocyte
4. Primary spermatocyte

Q. Transgenic animals are produced by inserting foreign genes into the __________.

1. both a and b
2. cytoplasm of the sperm
3. embryonic cells
4. pronucleus of the gamete

Q. Basic principle of developing transgenic plants and animals is to introduce the gene of interest into the nucleus to

1. germ cell
2. somatic cell
3. vegetative cell
4. body cell

Q.

During gene insertion using microinjection, transgenes are added to the -

1. Egg

2. Sperm

3. Male pronucleus

4. Female pronucleus

Q. The basic principle of developing transgenic plants and animals is to introduce the gene of interest into the nucleus of a

1. Vegetative cell
2. Somatic cell
3. Germ cell
4. Body cell

Q. Release of second polar body from human egg nucleus occurs

1. After the entry of sperm and before fertilization
2. After fertilization
3. With no relation to sperm entry
4. Before sperm entry

Q. Extrusion of second polar body from egg nucleus occurs

1. After entry of sperm before completion of fertilization.
2. After completion of fertilization.
3. Before entry of sperm.
4. Without any relation of sperm entry.

Q. The basic principle of developing transgenic plants and animals is to introduce the gene of interest into the nucleus of a

1. Somatic cell
2. Vegetative cell
3. Germ cell
4. Body cell

Q. The plant in which the foreign gene has been introduced is called _____ plant

Q. Haploid egg is fertilized by sperm at which stage?

1. Oogonium
2. Secondary oocyte
3. Primary oocyte
4. Ovum

Q.

the transgenic animals are those which have (a)foreign dna in some of their cells (b)foreign dna in all of their cells .

Q. Totipotency is basic principle of ______________.

1. Tissue culture
2. Silviculture
3. Sericulture
4. Pisciculture.

Q. Basic principle of developing transgenic plants and animals is to introduce the gene of interest into the nucleus of

1. Somatic cell
2. Vegetative cell
3. Germ cell
4. Body cell

Q. Beginning of embryonic development in the egg is indicated by

1. Cleavage
2. Differentiation
3. Polarity
4. Organogenesis

Q.

During gene insertion using microinjection, transgenes are added to the:

1. Sperm

2. Egg

3. Male pronucleus

4. Female pronucleus