Ova

Q. What is present in an Ovule?

1. Egg cell
2. Ovary
3. Pollen
4. Embryo

Q.

Which of the following is/are haploid cell(s)?

1. viviparous

2. oviparous
3. Skin cell
4. Vaginal cell

Q.

How does fertilisation take place? Fertilisation occurs once in a month. Comment.

Q.

What is Isogamy?

Q. The ratio of the number of chromosomes in a human zygote to a human sperm is:

1. 1:4
2. 1:2
3. 2:1
4. 4:1

Q. The male gametes in human are produced by the ____.

1. penis
2. abdomen
3. seminal ducts
4. testes

Q. The zygote divides repeatedly to form a mass of cells, known as

1. ovum
2. sperm
3. embryo
4. uterus

Q. The ratio of the number of chromosomes in a human zygote to a human sperm is:

1. 1:4
2. 1:2
3. 2:1
4. 4:1