Q. 16. Match List I with List II
List I
A. Progestasert
B. Saheli
C. Lippe’s Loop
D. Periodic abstinence
List II
I. once a week pill
II. hormone releasing IUD
III. Non-medicated IUD
IV. Natural method of birth control
Choose the correct answer from the options given below:
(A) A-II, B-III, C – I, D – IV
(B) A-I, B-II, C – IV, D – III
(C) A-II, B-I, C – III, D – IV
(D) A-II, B-IV, C – I, D – III
Answer:
Explanation:
Q. 17. The vital link that ensures continuity of species between organisms of one generation and the next generation is-
(A) Male gamete
(B) Female gamete
(C) zygote
(D) syngamy
Answer:
Explanation:
Q. 18. In case of COVID positive patients, presence of corona virus is suspected only when the pathogen has produced a disease symptom. But when the symptoms of the disease has not appeared, the corona virus in the body can be detected by-
(A) Enzyme linked immuno-sorbent Assay (ELISA) only
(B) Recombinant DNA technology only
(C) Reverse transcriptase Polymerase Chain Reaction (RT-PCR)
(D) Widal Test
Answer:
Explanation:
Q. 19. Bacillus thuringiensis is a biocontrol agent against
(A) Nematode
(B) Fungal pathogen
(C) Insect pests
(D) bacterial pathogen
Answer:
Explanation:
Q. 20. Arrange the following events in the female reproductive cycle in their natural sequence.
A. Ovulation
B. Growth of corpus luteum
C. Sudden increase in level of LH
D. Secretion of FSH
E. Growth of ovarian follicle and oogenesis
Choose the correct answer from the options given below:
(A) E-D-A-B-C
(B) D-E-C-A-B
(C) E-C-A-D-B
(D) D-A-C-E-B
Answer:
Explanation: