Fetus Development

Q.

The weight of a typical full-term baby is around -

1. 2.0 - 4 kg

2. 5.0 - 6.0 kg

3. 2.5 - 5 kg

4. 1.0 - 3 kg

Q.

What is formed in humans from Blastopore?

Q.

What does embryology mean?

Q. present in the blastocyst consist of stem cells that divide and differentiate to form the germ layers.

1. Trophoblast
2. Blastomeres
3. Morula
4. Inner cell mass

Q.

Give one word for the following:
Initial stage in the development of an embryo

Q. Zygote life cycle and gaemate life cycle

Q.

Question 45
What changes are observed in the uterus subsequent to implantation of a young embryo?

Q.

During gestation, in which stage are all of the major organs and structures within the developing mammal formed?

1. Germinal stage

2. Foetal developmental stage

3. During parturition

4. Embryonic stage

Q.

Human embryo is protected by________

1. allontois

2. peritoneal cavity

3. amniotic cavity

4. pleural cavity

Q.

The first movements of the foetus and appearance of hair on its head are usually observed during which month of pregnancy?

1. Fourth month

2. Fifth month

3. Sixth month

4. Third month

Q.

Match the following:

$\begin{array}{cc}\text{i. 12 weeks}& \text{a. In a male foetus testis migrates to scrotum}\\ \text{ii. 14 weeks}& \text{b. Genitals develop accordingly}\\ \text{iii. 24 weeks}& \text{c. Covered with lanugo}\\ \text{iv. 32 weeks}& \text{d. Babys head will engage}\\ \text{v. 40 weeks}& \text{e. Organs are fully formed}\end{array}$

1. i) $\Rightarrow$ d , ii) $\Rightarrow$ c, iii) $\Rightarrow$ a, iv) $\Rightarrow$ b, v) $\Rightarrow$ e

2. i) $\Rightarrow$ c, ii) $\Rightarrow$ e, iii) $\Rightarrow$ b, iv) $\Rightarrow$ a, v) $\Rightarrow$ d

3. i) $\Rightarrow$ b, ii) $\Rightarrow$ c, iii) $\Rightarrow$ e, iv) $\Rightarrow$ a, v) $\Rightarrow$ d

4. i) $\Rightarrow$ d, ii) $\Rightarrow$ b, iii) $\Rightarrow$ a, iv) $\Rightarrow$ c, v) $\Rightarrow$ e

Q.

During gestation, in which stage are all of the major organs and structures within the developing mammal formed?

1. Embryonic stage

2. Germinal stage

3. Foetal developmental stage

4. During parturition

Q.

How do you check for a viable pregnancy?

1. Urine test for HCG

2. Foetal heart beat

3. Scan showing foetal brain with 2 lobes and spinal cord

4. None of the above

Q. Match the events with the month of gestation at the end of which they are evident.

1. Hair appears on head
2. Eyelids separate
3. Heart develops
4. Limbs and digits

Q. Sort the stages in the order they appear during the embryonic development in humans.

1. Foetus
2. Embryo
3. Morula
4. Blastocyst
5. Zygote

Q. Select the correct sequence of processes which takes place in the female reproductive system.

1. Ovulation -> Embryo development -> Fertilisation -> Implantation​
2. Fertilisation -> Ovulation -> Embryo development -> Implantation​
3. Ovulation -> Fertilisation -> Implantation -> Embryo development​
4. Embryo development -> Implantation -> Fertilisation -> Ovulation​

Q. State any 6 Difference between miotic and miosis

Q. how are twins born? is this necessary that they have same sex? why or why not?

Q.

In embryo sac, n, 2n, 3n conditions are found respectively in

1. nucleus, endosperm, egg

2. egg, antipodal, endosperm

3. antipodal, zygote, endosperm

4. endosperm, nucleus, egg