Fertilisation of sperm with the ovum takes place in

Consider the following statements.
1. Fertilisation of the egg takes place inside the embryo sac.
2. Fertilised ovum form the embryo.
3. Endosperm is generally triploid.
Which of the statements given above are correct?

A

1, 2 and 3

B

1 and 2

C

2 and 3

D

1 and 3

Egg is covered by a tough sheet of tissue that protects it from desiccation and infection by pathogens. But the same tissue also prevents sperm nuclei from encountering the egg nuclei. However, a part of sperm is known to release enzymes that digest this tough sheet. What part of sperm is it?

A

Tail end

B

Mitochondria

C

Acrosome

D

Sperm nuclei

Rakesh and Reshma have difficulty conceiving a baby. They consulted a sex therapist. Sperm count of Rakesh was normal but the doctor observed that the motility of his sperm was less. What part of sperm do you think has the issue?

A

Tail

B

Nucleus

C

Mitochondria

D

Acrosome

Fertilization of sperm and ovum takes place in _____________

A

Ampulla of oviduct

B

Isthmus of oviduct

C

Fimbriae of oviduct

D

Uterus

Consider the following statements.
1. When evaporation takes place, cooling takes place.
2. Evaporation takes place at all temperature, boiling takes place only at the boiling point.
3. Evaporation is a surface phenomenon.
Which of the statements given above is/are true?

A

Only 1

B

1 and 2

C

2 and 3

D

1, 2 and 3

Suppose you can travel from a place A to a place B by 3 buses, from place Bto place C by 4 buses, from place C to place D by 2 buses and from place D to place E by 3buses. In how many ways can you travel ?from A to E?

A

36

B

64

C

74

D

72

Match List-I (part before fertilisation) with List-II (part after fertilisation) and select the correct answer:

A

<table class="table-style-1"> <tr> <td><strong>List-I</strong></td> <td><strong>List-II</strong></td> </tr> <tr> <td>a. Ovary</td> <td>1. Paricarp of fruit</td> </tr> <tr> <td>b. Ovary wall</td> <td>2. Fruit</td> </tr> <tr> <td>c. Ovule</td> <td>3. Seed</td> </tr> <tr> <td>d. Egg cell</td> <td>4. Embryo</td> </tr></table> a-2, b-1, c-3, d-4

B

a-1, b-3, c-4, d-2

C

a-3, b-4, c-2, d-1

D

a-4, b-2, c-1, d-3

What technique is used to inject the sperm directly into the ovum in a laboratory setting?

A

ZIFT

B

GIFT

C

IUT

D

ICSI

Ovum receives the sperm in the region of _________

A

Animal pole

B

Equator

C

Vegetal pole

D

Pigmented area

In the human being, normally in which one of the following parts, does the sperm fertilize the ovum?

A

Cervix

B

Fallopian tube

C

Lower part of uterus

D

Upper part of uterus