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Test: Human Reproduction- Case Based Type Questions - NEET MCQ


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15 Questions MCQ Test Biology Class 12 - Test: Human Reproduction- Case Based Type Questions

Test: Human Reproduction- Case Based Type Questions for NEET 2024 is part of Biology Class 12 preparation. The Test: Human Reproduction- Case Based Type Questions questions and answers have been prepared according to the NEET exam syllabus.The Test: Human Reproduction- Case Based Type Questions MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Human Reproduction- Case Based Type Questions below.
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Test: Human Reproduction- Case Based Type Questions - Question 1

Study the given diagram and answer any of the four questions given below :

Identify the parts labelled 1, 2 and 3 in the diagram given.

Detailed Solution for Test: Human Reproduction- Case Based Type Questions - Question 1

1. Placental villi having finger like projections

2. The umbilical cord is a tube that connects you to your baby during pregnancy.

3. The yolk sac is a membranous sac attached to an embryo.

Test: Human Reproduction- Case Based Type Questions - Question 2

Read the following text and answer the following questions on the basis of the same: During sexual reproduction, the male inserts the sperm into the female reproductive tract, and sperm receive by the ovary and after that sperm fuse with the egg (ovum) in the ampullary region, this process is called fertilization, haploid nucleus of sperm fuse with that of ovum to form Diploid zygote.

The phenomenon of sperm activation in mammals is known as.

Detailed Solution for Test: Human Reproduction- Case Based Type Questions - Question 2
This step is a biochemical event, in which the acrosome reaction occurs so, the reaction can penetrate the zona pellucida of the oocyte and fertilize with an egg (ovum).
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Test: Human Reproduction- Case Based Type Questions - Question 3

Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : Blastocyst undergoes gastrulation to form three germinal layers.

Reason (R) : This involves cell movements (morphogenetic movement) that help to attain new shape and morphology of embryo.

Detailed Solution for Test: Human Reproduction- Case Based Type Questions - Question 3

During gastrulation, the blastula reorganizes cells migrate to the interior of the

embryo, forming the three germ layers.

Test: Human Reproduction- Case Based Type Questions - Question 4

Study the given diagram and answer any of the four questions given below :

During embryonic development which of the following is formed first ?

Detailed Solution for Test: Human Reproduction- Case Based Type Questions - Question 4

During the development of the body, the first organ to develop from the embryo is the heart. Development of the heart begins in the third week of the gestation period, a complete heart with 4 chambers is formed in week 7

Test: Human Reproduction- Case Based Type Questions - Question 5

Read the following text and answer the following questions on the basis of the same: During sexual reproduction, the male inserts the sperm into the female reproductive tract, and sperm receive by the ovary and after that sperm fuse with the egg (ovum) in the ampullary region, this process is called fertilization, haploid nucleus of sperm fuse with that of ovum to form Diploid zygote.

Fertilization take place in :

Detailed Solution for Test: Human Reproduction- Case Based Type Questions - Question 5
Fusion of sperm with an egg is known as fertilization, most of the time student’s think that this process is occur in ovary but that’s not true it actually occur In the fallopian tube that links an ovary to the uterus fertilized egg successfully travels down the fallopian tube and implants in the uterus.
Test: Human Reproduction- Case Based Type Questions - Question 6

Read the following text and answer the following questions on the basis of the same: Read the passage and answer any four questions : Implantation is the embedding of the blastocyst into the endometrium of the uterus. Blastocyst is a ball of cells with a large, fluid-filled cavity called the blastocoel. The blastomeres in the blastocyst are arranged into an outer layer called trophoblast and inner cell mass. With the formation of blastocoel, morula is converted to blastula which is called blastocyst in mammals.

State of embryo development, in which implantation occurs in human female is :

Detailed Solution for Test: Human Reproduction- Case Based Type Questions - Question 6
Blastocyst implant in the uterus, normally developing embryo will contain about six to 10 cells,
Test: Human Reproduction- Case Based Type Questions - Question 7

Study the given diagram and answer any of the four questions given below :

The signals for parturition originate from :

Detailed Solution for Test: Human Reproduction- Case Based Type Questions - Question 7
The signals for parturition originate from Placenta as well as fully developed foetus,which prompt little uterine contraction is known as foetal expulsion reflex
Test: Human Reproduction- Case Based Type Questions - Question 8

Read the following text and answer the following questions on the basis of the same: During sexual reproduction, the male inserts the sperm into the female reproductive tract, and sperm receive by the ovary and after that sperm fuse with the egg (ovum) in the ampullary region, this process is called fertilization, haploid nucleus of sperm fuse with that of ovum to form Diploid zygote.

Egg development without fertilization is known as

Detailed Solution for Test: Human Reproduction- Case Based Type Questions - Question 8
Parthenogenesis is a method in which a new individual developed without fertilization, and there is no involvement of male gamete. e.g., Honey bee and drosophila etc.
Test: Human Reproduction- Case Based Type Questions - Question 9

Read the following text and answer the following questions on the basis of the same: Read the passage and answer any four questions : Implantation is the embedding of the blastocyst into the endometrium of the uterus. Blastocyst is a ball of cells with a large, fluid-filled cavity called the blastocoel. The blastomeres in the blastocyst are arranged into an outer layer called trophoblast and inner cell mass. With the formation of blastocoel, morula is converted to blastula which is called blastocyst in mammals.

Which organ is formed during gastrulation ?

Detailed Solution for Test: Human Reproduction- Case Based Type Questions - Question 9
The primary gut that forms during gastrulation in the developing zygote is known as the archenteron.
Test: Human Reproduction- Case Based Type Questions - Question 10

Study the given diagram and answer any of the four questions given below :

Hormones secreted by the placenta to maintain pregnancy are :

Detailed Solution for Test: Human Reproduction- Case Based Type Questions - Question 10
hCG, progesterone, estrogens and human placental lactogen, are secreted by the placenta during pregnancy.
Test: Human Reproduction- Case Based Type Questions - Question 11

Read the following text and answer the following questions on the basis of the same: During sexual reproduction, the male inserts the sperm into the female reproductive tract, and sperm receive by the ovary and after that sperm fuse with the egg (ovum) in the ampullary region, this process is called fertilization, haploid nucleus of sperm fuse with that of ovum to form Diploid zygote.

Site of fusion of sperm with an ovum.

Detailed Solution for Test: Human Reproduction- Case Based Type Questions - Question 11
Fallopian tube has three parts first is isthmus second is ampulla (ampullary – isthmic junction) is the most common site for fertilization and the third is infundibulum which is farthest from the uterus, and the first cleavage division of zygote occurs in the ampullary-isthmic junction.
Test: Human Reproduction- Case Based Type Questions - Question 12

Read the following text and answer the following questions on the basis of the same: Read the passage and answer any four questions : Implantation is the embedding of the blastocyst into the endometrium of the uterus. Blastocyst is a ball of cells with a large, fluid-filled cavity called the blastocoel. The blastomeres in the blastocyst are arranged into an outer layer called trophoblast and inner cell mass. With the formation of blastocoel, morula is converted to blastula which is called blastocyst in mammals.

The process that transforms the embryo into a three-layered stage is called............. .

Detailed Solution for Test: Human Reproduction- Case Based Type Questions - Question 12
The process that transforms the embryo into a three-layered stage is called gastrulation (a phase early in the embryonic development of most animals).
Test: Human Reproduction- Case Based Type Questions - Question 13

Study the given diagram and answer any of the four questions given below :

Gestation period in human is :

Detailed Solution for Test: Human Reproduction- Case Based Type Questions - Question 13
The average length of human gestation is 38 weeks, from the first day of the woman's last menstrual period.
Test: Human Reproduction- Case Based Type Questions - Question 14

Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : All copulations do not lead to fertilisation and pregnancy.

Reason (R) : Fertilisation can occur only if the ovum and sperms are transported simultaneously to the ampullary-isthmic junction.

Detailed Solution for Test: Human Reproduction- Case Based Type Questions - Question 14
Fertilisation can only occur if the ovum and sperms are transported simultaneously to the ampullary-isthmic junction and ovum is released only once a month. This is one of the reasons why all copulations do not lead to fertilisation and pregnancy.
Test: Human Reproduction- Case Based Type Questions - Question 15

Read the following text and answer the following questions on the basis of the same: Read the passage and answer any four questions : Implantation is the embedding of the blastocyst into the endometrium of the uterus. Blastocyst is a ball of cells with a large, fluid-filled cavity called the blastocoel. The blastomeres in the blastocyst are arranged into an outer layer called trophoblast and inner cell mass. With the formation of blastocoel, morula is converted to blastula which is called blastocyst in mammals.

The ectoderm cells will form the.......................... .

Detailed Solution for Test: Human Reproduction- Case Based Type Questions - Question 15
Ectodermal cells form the central nervous system.
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