Subject Experts Solutions for Exercise 1: MCQS CORNER
Subject Experts Biology Solutions for Exercise - Subject Experts Solutions for Exercise 1: MCQS CORNER
Attempt the free practice questions from Exercise 1: MCQS CORNER with hints and solutions to strengthen your understanding. MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII solutions are prepared by Experienced Embibe Experts.
Questions from Subject Experts Solutions for Exercise 1: MCQS CORNER with Hints & Solutions
Match column I (terms) with column II (definitions) and select the correct option from the codes given below.
| Column i | Column ii | ||
| A. | Parturition | (i) | Attachment of embryo to endometrium |
| B. | Gestation | (ii) | Release of egg from Graafian follicle |
| C. | Ovulation | (iii) | Delivery of baby from uterus |
| D. | Implantation | (iv) | Duration between pregnancy and birth |
| E. | Conception | (v) | Formation of zygote by fusion of the egg and sperm |
| (vi) | Stoppage of ovulation and menstruation |
Match column I with column II and select the correct option from the codes given below.
| Column I | Column II | ||
| A. | Hypothalamus | (i) | Sperm lysins |
| B. | Acrosome | (ii) | Estrogen |
| C. | Graafian follicle | (iii) | Relaxin |
| D. | Leydig's cells | (iv) | GnRH |
| E. | Parturition | (v) | Testosterone |
Consider the following four statements and select the correct option stating which ones are true (T) and which ones are false (F).
(i) The scrotum acts as a thermoregulator, maintaining the testes at a temperature lower than that of the body.
(ii) Corona radiata layer of the ovum prevents polyspermy.
(iii) Middle part of ear is derived from the endoderm layer
(iv) The hormone, human chorionic gonadotropin facilitates parturition by softening the connective tissue of the pubic symphysis.
Read the following statements carefully and select the correct statements.
(i) hPL plays a major role in parturition.
(ii) Fetus shows movements first time in the 7th month of pregnancy.
(iii) Signal for parturition comes from fully developed fetus and placenta.
(iv) Embryo's heart is formed by the third month of pregnancy.
The third stage of parturition is called "after-birth". In this stage
Given below are three statements each with one or two blanks. Select the option which correctly fills up the blanks in any two statements.
(A) In human beings, menstrual cycle ceases around 50 years of age; this is termed as
(B) The milk produced during the initial few days of lactation is called (i) which contains several (ii) absolutely essential to develop resistance for the new-born babies.
(C) At the completion of the (i) division, the primary oocyte divides into secondary oocyte and (ii).
Match column I with column II and select the correct option from the codes given below.
| Column I | Column II | ||
| A | Hyaluronidase | (i) | Acrosomal reaction |
| B | Corpus luteum | (ii) | Morphogenetic movements |
| C | Gastrulation | (iii) | Progesterone |
| D | Capacitation | (iv) | Mammary gland |
| E | Colostrum | (v) | Sperm activation |
After birth, colostrum is released from mammary glands which is rich in
