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Test: Pregnancy and Embryonic Development (November 5) - NEET MCQ


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10 Questions MCQ Test - Test: Pregnancy and Embryonic Development (November 5)

Test: Pregnancy and Embryonic Development (November 5) for NEET 2024 is part of NEET preparation. The Test: Pregnancy and Embryonic Development (November 5) questions and answers have been prepared according to the NEET exam syllabus.The Test: Pregnancy and Embryonic Development (November 5) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Pregnancy and Embryonic Development (November 5) below.
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Test: Pregnancy and Embryonic Development (November 5) - Question 1

In a normal pregnant woman, the amount of total gonadotropin activity was assessed. The result expected was.

Detailed Solution for Test: Pregnancy and Embryonic Development (November 5) - Question 1

Placenta acts as an endocrine gland during pregnancy and produces several hormones including human chorionic gonadotropin (hCG), estrogen, progesterone, etc. hCG stimulates the corpus luteum to secrete progesterone.

Test: Pregnancy and Embryonic Development (November 5) - Question 2

Which of the following hormones is not a secretion product of human placenta?

Detailed Solution for Test: Pregnancy and Embryonic Development (November 5) - Question 2

Prolactin is secreted by the anterior lobe of pituitary gland. After parturition, secretion and storage of milk in mammary glands is under the influence of this hormone.

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Test: Pregnancy and Embryonic Development (November 5) - Question 3

Fill in the blanks in the given statement and select the correct option.
A. The developmental stage of an animal passed in the mother's womb is called  (i) .
B. The outer layer of blastula is called  (ii) . It does not take part in the formation of  (iii) .
C.  (iv)  is the first germ layer formed from the inner cell mass by differentiation.

Detailed Solution for Test: Pregnancy and Embryonic Development (November 5) - Question 3
Explanation:

  • A. The developmental stage of an animal passed in the mother's womb is called (i)-embryo.

  • B. The outer layer of blastula is called (ii)-trophoblast. It does not take part in the formation of (iii)-embryo proper.

  • C. (iv)-Endoderm is the first germ layer formed from the inner cell mass by differentiation.


By selecting option B, we correctly fill in the blanks in the given statement. The embryo is the developmental stage of an animal passed in the mother's womb. The outer layer of blastula is known as the trophoblast, which does not participate in the formation of the embryo proper. Endoderm is the first germ layer formed from the inner cell mass through differentiation. This option provides the most accurate and complete information to fill in the blanks in the statement.
Test: Pregnancy and Embryonic Development (November 5) - Question 4

Fetus gets nourishment and oxygen through

Detailed Solution for Test: Pregnancy and Embryonic Development (November 5) - Question 4

Placenta is an intimate connection between the fetus and uterine wall of the mother to exchange the materials. Food materials and oxygen pass from the mother's blood into the fetal blood and fetal excretory products diffuse into maternal blood through placenta.

Test: Pregnancy and Embryonic Development (November 5) - Question 5

Identify the labelled parts A−D in the given figure of human foetus within the uterus.

Test: Pregnancy and Embryonic Development (November 5) - Question 6

The main function of trophoectoderm in mammalian embryo is

Detailed Solution for Test: Pregnancy and Embryonic Development (November 5) - Question 6

During embryonic development, the blastocyst formed consists of an outer envelope of cells called the trophoblast and the inner cell mass. The cells of trophoblast form chorion and amnion and hence part of placenta.

Test: Pregnancy and Embryonic Development (November 5) - Question 7

Urine test during pregnancy determines the presence

Detailed Solution for Test: Pregnancy and Embryonic Development (November 5) - Question 7

During pregnancy, human chorionic gonadotropin hormone is released by trophoblastic cells which passes out in urine. Thus, if this hormone appears in urine test, it means the woman is pregnant. This hormone maintains the corpus luteum and stimulates it to secrete progesterone which is required for the maintenance of the uterus.

Test: Pregnancy and Embryonic Development (November 5) - Question 8

The early stage human embryot distinctly possesses 

Detailed Solution for Test: Pregnancy and Embryonic Development (November 5) - Question 8

Early human embryo possesses a dorsal hollow nerve cord, a well developed notochord and a series of gill slits, which represent the fundamental chordate characters.

Test: Pregnancy and Embryonic Development (November 5) - Question 9

Structure connecting the foetus to placeiita is

Detailed Solution for Test: Pregnancy and Embryonic Development (November 5) - Question 9

Umbilical cord is a narrow. Tube like structure that connects the fetus to the placenta. Through this tube, nutrients and oxygen are supplied from the mother to the baby and waste products are removed from the baby,.

Test: Pregnancy and Embryonic Development (November 5) - Question 10

Select the option that correctly fills up the blanks in the given paragraph.

After one month of pregnancy, the embryo's (i) is formed. By the end of the (ii) month of pregnancy, the fetus develops limbs and digits. By the end of (iii). most of the major organ systems are formed, for example, the limbs and external genital organs are well-developed. By the end of (iv). the body is covered with fine hair, eye-lids separate, and eyelashes are formed.

Detailed Solution for Test: Pregnancy and Embryonic Development (November 5) - Question 10
Explanation:

  • (i) - heart: After one month of pregnancy, the embryo's heart is formed.

  • (ii) - second: By the end of the second month of pregnancy, the fetus develops limbs and digits.

  • (iii) - first trimester: By the end of the first trimester, most major organ systems are formed, such as well-developed limbs and external genital organs.

  • (iv) - second trimester: By the end of the second trimester, the body is covered with fine hair, eyelids separate, and eyelashes are formed.

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