Tissues Class 9 MCQ with Answers. We covered all the Tissues Class 9 MCQ with Answers in this post for free so that you can practice well for the exam.
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MCQ on Tissue for Class 9th Students
Germ cells present in the seminiferous tubules undergo
(A) oogenesis
(B) spermatogenesis
(C) parthenogenesis
(D) both (B) and (C)
Option b – spermatogenesis
Lactational amenorrhea
(A) prevents secretion of prolactin
(B) prevents secretion of milk from the breast
(C) prevents spermatogenesis
(D) prevents conception
Option d – prevents conception
The contraceptive ‘Saheli’
(A) is an IUD
(B) that increases the concentration of estrogen and prevents ovulation in females.
(C) blocks estrogen receptors in the uterus, preventing eggs from getting implanted.
(D) is a post-coital contraceptive
Option c – blocks estrogen receptors in the uterus, preventing eggs from getting implanted.
In the case of the peppered moth (Biston betularia), the black-colored form became dominant over the light-colored form in England during the industrial revolution. This is an example of
(A) natural selection, whereby the darker forms were selected
(B) the appearance of the dark-colored individuals due to very poor sunlight.
(C) protective mimicry
(D) inheritance of dark-colored characters acquired due to the darker environment.
Option a – natural selection, whereby the darker forms were selected
The immunity developed by a child after the attack of measles is immunity,
(A) natural acquired active
(B) artificial acquired active
(C) natural acquired passive
(D) artificial acquired passive
Option a – natural acquired active
Male gametes in mammalian gonads are produced by
(A) mitosis
(B) meiosis
(C) mitosis and meiosis both
(D) without any cell division
Option b – meiosis
From the following identify the two common characters found in centipedes, cockroaches, and crab
(A) Jointed legs and chitinous exoskeleton
(B) Green gland and tracheac
(C) Book lungs and antennae
(D) Compound eyes and anal cerci
Option a – Jointed legs and chitinous exoskeleton
Identify the option that correctly represents the characteristic features of phylum Annelida.
(A) Triploblastic, segmented body and bilaterally symmetrical.
(B) Triploblastic, flattened body and acoelomate condition.
(C) Diploblastic, mostly marine and radially symmetrical.
(D) Triploblastic, unsegmented body and bilaterally symmetrical.
Option a – Triploblastic, segmented body and bilaterally symmetrical.
Read the following statements and choose the correct option. Statement I: The cells lining the villi in the small intestine have microscopic projections called microvilli. Statement II: Microscopic microvilli increase the surface area of absorption enormously.
(A) Statement I is correct, and II is wrong.
(B) Statements I and II both are wrong.
(C) Both statements are correct.
(D) Statement II is correct, and I is wrong.
Option c – Both statements are correct.
Identify the cells of ‘Crypts of Lieberkuhn’ that secrete antibacterial lysozyme.
(A) Argentaffin cells
(B) Paneth cells
(C) Zymogen cells.
(D) Kupffer cells
Option b – Paneth cells
Artificial reproductive techniques are NOT always applicable because
(A) it is very expensive, hence only a few people can afford it.
(B) these facilities are available only in very few centers in India.
(C) it has raised ethical, legal, and moral issues.
(D) all of these
Option d – all of these
The CORRECT sequence of embryonic development is
(A) Blastula – Morula – Zygote – Gastrula – Embryo
(B) Zygote – Blastula – Morula – Gastrula – Embryo
(C) Zygote – Morula – Blastula – Gastrula – Embryo
(D) Gastrula – Morula – Zygote – Blastula – Embryo
Option c – Zygote – Morula – Blastula – Gastrula – Embryo
Gel electrophoresis is used for
(A) construction of recombinant DNA by joining with cloning vectors
(B) isolation of DNA molecules
(C) cutting of DNA into fragments
(D) separation of DNA fragments according to their size
Option d – separation of DNA fragments according to their size
Primers used in the PCR technique are
(A) denatured DNA segments
(B) synthetic oligonucleotides
(C) amplified genes
(D) restriction enzymes
Option b – synthetic oligonucleotides
Which of the following is NOT correct regarding plasmids?
(A) They are small, extrachromosomal circular forms of DNA.
(B) They are naturally found in bacteria only.
(C) They are ‘replicons’ capable of autonomous replication within suitable a host.
(D) They carry genes related to the survival and reproduction of carrier bacterium under unfavorable conditions.
Option b – They are naturally found in bacteria only.
Identify the CORRECT statement with respect to the excretion by the human kidneys.
(A) Descending limb of the loop of Henle is impermeable to water.
(B) The distal convoluted tubule is incapable of reabsorbing HCO3.
(C) Nearly 99 percent of the glomerular filtrate is reabsorbed by the renal tubules.
(D) Ascending limb of the loop of Henle is impermeable to electrolytes.
Option c – Nearly 99 percent of the glomerular filtrate is reabsorbed by the renal tubules.
From the following statements identify the INCORRECT statement.
(A) Retinal is the light-absorbing portion of visual photopigments.
(B) In the retina, the rods have the photopigment rhodopsin while cones have three different photopigments.
(C) Retinal is derivative of Vitamin C.
(D) Rhodopsin is the purplish red protein present in rods only.
Option c – Retinal is derivative of Vitamin C.
Identify the ODD one with respect to hormones secreted by the anterior pituitary.
(A) Prolactin
(B) Thyroid stimulating hormone
(C) Growth hormone
(D) Vasopressin
Option d – Vasopressin
The testes in humans are situated outside the abdominal cavity inside a pouch called the scrotum. The purpose served is for
(A) maintaining the scrotal temperature lower than the internal body temperature.
(B) escaping any possible compression by the visceral organs.
(C) providing more space for the growth of epididymis.
(D) providing a secondary sexual feature for exhibiting the male sex.
Option a – maintaining the scrotal temperature lower than the internal body temperature.
A doctor identifies symptoms of nasal congestion, headache, sore throat, and hoarseness. cough in a patient. The conclusion is that the patient is infected by a pathogen
(A) Plasmodium
(B) Adenovirus
(C) Salmonella
(D) Rhinovirus
Option d – Rhinovirus
Identify the disease caused by deficiency of iodine.
(A) Goitre
(B) Addison’s disease
(C) Cretinism
(D) Acromegaly
Option a – Goitre
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