Home
Class 11
BIOLOGY
Read the following statements about the ...

Read the following statements about the reproductive cycles in mammals and select the correct ones.
(i) Oestrous cycle occurs in primate mammals.
(ii) In species with oestrous cycle, females are generally sexually active during oestrous phase.
(iii)Both the cycles show monthly recurrence.

A

i and ii

B

ii and iii

C

II only

D

I,ii and iii

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

Read the following statements about reproduction and select the correct ones. (i) It involves a single parent. (ii) It is slower than sexual reproduction. (iii) It produces progenty that are genetically identical with the parent but not with one another. (iv) The progeny of asexual reproduction can be termed as clones.

Oestrous cycle is characteristic of mamma-lian females other than primates and occurs in females of

Read the following statements about cell division and select the correct ones. (i) M phase represents the phase when actual cell division occurs and I phase represetns the phase between two successive M phases. (ii) In the 24 hours average duration of cell cycle of a human cell, cell division proper lasts for only about an hour. (iii) M phase constitutes more than 95% of the duration of cell cycle.

Read the following statements about menstrual cycle and select two correct statements. (i) Lack of menstruation may be indicative of pregnancy. (ii) The changes in the ovary and the uterus are induced by changes in the levels of ovarian hormones only. (iii) LH surge induces ovulation. (iv) If fertilization occurs, corpus luteum degenerates immediately

Read the following statements about menstrual cycle and select two correct statements: (i). Lack of menstruation may be indicative of pregnance (ii). The changews in the ovary and the uterus are induced by changes in the lveles of ovarian hormones only (iii). LH suge induces ovulation (iv). If fertilisation occurs, corpus luteum degenerates immediately

Assertion : Some female animals permit copulation only during oestrous cycle. Reason : Oestrous cycle is observed in non-primate mammals.

Explain the following phases in the menstrual cycle of a human female : (i) Menstrual phase (ii) Follicular phase (iii) Luteal phase

Read the given statements and select the correct option. Statement 1: Glycolysis occurs in mitochondrial matrix. Statement 2: Krebs' cycle occurs on cristae of mitochondria.

Read the following statements and select the incorrect statements . (i) The cytoplasmic increase is not a discontinuous process (ii) The cell cycle is not a genetically controlled process (iii) Synthesis phase synthesizes cell organelles only (iv) Interphase is not metabolically inactive

Read the following statements regarding sexual reproduction and select the set of correct statements. (a.) Sexual reproduction mostly involves 2 parents. (b.) It generally involves gametic fusion. (c.) Meiosis does not occur in sexual reproduction. (d.) External fertilization is a characteristic of sexual reproduction.