Question Set C

TN 12th Standard Biology Zoology - Reproduction in Organisms Creative Questions Study Material - QB365

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Questions:

Multiple Choice Question

50 x 1 = 50

________________is/are an ideal disinfectant for waste water.

(a)

U-V Rays

(b)

Chlorination

(c)

Boiling

(d)

Ozonisation

B cells that produce and release large amounts of antibody are called

(a)

Memory cells

(b)

Basophils

(c)

Plasma cells

(d)

killer cells

B Cells are activated by

(a)

Complement

(b)

Antibody

(c)

Interferon

(d)

Antigen

Which is not a macrophage?

(a)

Monocyte

(b)

Microglia

(c)

Kupffer cell

(d)

Lymphocyte

AIDS virus has

(a)

Single stranded RNA

(b)

Double stranded RNA

(c)

Single stranded DNA

(d)

Double stranded DNA

Spread of cancerous cells to distant sites is termed as

(a)

Metastasis

(b)

Oncogenes

(c)

Proto-oncogenes

(d)

Malignant neoplasm

Paratope is an

(a)

Antibody binding site on variable regions

(b)

Antibody binding site on heavy regions

(c)

Antigen binding site on variable regions

(d)

Antigen binding site on heavy regions

Some organisms are able to maintain homeostasis by physical means _______

(a)

Conform

(b)

Regulate

(c)

Migrate

(d)

Suspend.

Which of the following is correct for r-selected species

(a)

Large number of progeny with small size

(b)

large number of progeny with large size

(c)

small number of progeny with small size

(d)

small number of progeny with large size

10.

Which of the following is an r-species

(a)

Human

(b)

Insects

(c)

Rhinoceros

(d)

Whale

11.

The interaction in nature, where one gets benefit on the expense of other is...

(a)

Predation

(b)

Mutualism

(c)

Amensalism

(d)

Commensalism

12.

All populations in a given physical area are defined as

(a)

Biome

(b)

Ecosystem

(c)

Territory

(d)

Biotic factors

13.

In the E- waste generated by the Mobile Phones, which among the following metal is most abundant?

(a)

Copper

(b)

Silver

(c)

Palladium

(d)

Gold

14.

The use of microorganism metabolism to remove pollutants such as oil spills in the water bodies is known as

(a)

Biomagnification

(b)

Bioremediation

(c)

Biomethanation

(d)

Bioreduction

15.

Right to Clean Water is a fundamental right, under the Indian Constitution

(a)

Article 12

(b)

Article 21

(c)

Article 31

(d)

Article 41

16.

Transgenic animals are those which have

(a)

Foreign DNA in some of their cells

(b)

Foreign DNA in all their cells

(c)

Foreign RNA in some of their cells

(d)

Foreign RNA in all their cells

17.

The genetic defect adenosine deaminase deficiency may be cured permanently by

(a)

Enzyme replacement therapy

(b)

periodic infusion of genetically engineered lymphocytes having ADA cDNA

(c)

administering adenosine deaminase activators

(d)

introducing bone marrow cells producing ADA into embryo at an early stage of development.

18.

The first clinical gene therapy was done for the treatment of

(a)

AIDS

(b)

Cancer

(c)

Cystic fibrosis

(d)

SCID

19.

Which one of the following are at high risk extinction due to habitat destruction?

(a)

Mammals

(b)

Birds

(c)

Amphibians

(d)

Echinoderms

20.

The purpose of biological treatment of waste water is to _______

(a)

Reduce BOD

(b)

Increase BOD

(c)

Reduce sedimentation

(d)

Increase sedimentation

21.

Cyclosporin – A is an immunosuppressive drug produced from _______

(a)

Aspergillus niger

(b)

Manascus purpureus

(c)

Penicillium notatum

(d)

Trichoderma polysporum

22.

The organization which published the red list of species is

(a)

WWF

(b)

IUCN

(c)

ZSI

(d)

UNEP

23.

Which of the following pair is correctly matched for the product produced by them?

(a)

Acetobacter aceti - Antibiotics

(b)

Methanobacterium - Lactic acid

(c)

Penicilium notatum - Acetic acid

(d)

Saccharomyces cerevisiae - Ethanol

24.

Conservation of biodiversity within their natural habitat is

(a)

Insitu conservation

(b)

Exsitu conservation

(c)

In vivo conservation

(d)

In vitro conservation

25.

The Neanderthal man had the brain capacity of

(a)

650 – 800cc

(b)

1200cc

(c)

900cc

(d)

1400cc

26.

The golden age of reptiles was

(a)

Mesozoic era

(b)

Cenozoic era

(c)

Paleozoic era

(d)

Proterozoic era

27.

Who proposed the Germplasm theory?

(a)

Darwin

(b)

August Weismann

(c)

Lamarck

(d)

Alfred Wallace

28.

Which of the following was the contribution of Hugo de Vries?

(a)

Theory of mutation

(b)

Theory of natural Selection

(c)

Theory of inheritance of acquired characters

(d)

Germplasm theory

29.

Select the incorrect action of hormonal contraceptive pills from the following

(a)

Inhibition of spermatogenesis.

(b)

Inhibition of ovulation

(c)

Changes in cervical mucus impairing its ability to allow passage and transport of sperms

(d)

Alteration in uterine endometrium to make it unsuitable for implantation

30.

Read the given statements and select the correct option.
Statement 1: Diaphragms, cervical caps and vaults are made of rubber and are inserted into the female reproductive tract to cover the cervix before coitus.
Statement 2: They are chemical barriers of conception and are reusable.

(a)

Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.

(b)

Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.

(c)

Statement 1 is correct but statement 2 is incorrect

(d)

Both statements 1 and 2 are incorrect

31.

A contraceptive pill prevents ovulation by ______.

(a)

blocking fallopian tube

(b)

inhibiting release of FSH and LH

(c)

stimulating release of FSH and LH

(d)

causing immediate degeneration of released ovum.

32.

When lactose is present in the culture medium:

(a)

Transcription of lac y, lac z, lac a genes occurs.

(b)

Repressor is unable to bind to the operator.

(c)

Repressor is able to bind to the operator.

(d)

Both (a) and (b) are correct.

33.

Which of the following statements about DNA replication is not correct?

(a)

Unwinding of DNA molecule occurs as hydrogen bonds break.

(b)

Replication occurs as each base is paired with another exactly like it

(c)

Process is known as semi conservative replication because one old strand is conserved in the new molecule.

(d)

Complementary base pairs are held together with hydrogen bonds

34.

A mRNA molecule is produced by _____.

(a)

Replication

(b)

Transcription

(c)

Duplication

(d)

Translation

35.

Find the wrongly matched pair.

(a)

Bleeding phase- fall in oestrogen and progesterone

(b)

Follicular phase-rise in oestrogen

(c)

Luteal phase - rise in FSH level

(d)

Ovulatory phase - LH surge

36.

The process which the sperm undergoes before penetrating the ovum is _____.

(a)

Spermiation

(b)

Cortical reaction

(c)

Spermiogenesis

(d)

Capacitation

37.

The foetal membrane that forms the basis of the umbilical cord is _____.

(a)

Allantois

(b)

Amnion

(c)

Chorion

(d)

Yolk sac

38.

The glandular accessory organ which produces the largest proportion of semen is ______.

(a)

Seminal vesicle

(b)

Bulbourethral gland

(c)

Prostate gland

(d)

Mucous gland

39.

The mature sperms are stored in the ____.

(a)

Seminiferous tubules

(b)

Vas deferens

(c)

Epididymis

(d)

Seminal vesicle

40.

Which of the following is incorrect regarding ZW-ZZ type of sex determination?

(a)

It occurs in birds and some reptiles

(b)

Females are homogametic and males are heterogametic

(c)

Male produce one type of gamete

(d)

It occurs in gypsy moth

41.

Females with Turners syndrome have ______.

(a)

Small uterus

(b)

Rudimentary ovaries

(c)

Underdeveloped breasts

(d)

All of these

42.

A marriage between a colourblind man and a normal woman produces _______.

(a)

All carrier daughters and normal sons

(b)

50% carrier daughters, 50% normal daughters

(c)

50% colourblind sons, 50% normal sons

(d)

All carrier offsprings

43.

B cells that produce and release large amounts of antibody are called

(a)

Memory cells

(b)

Basophils

(c)

Plasma cells

(d)

killer cells

44.

Paratope is an

(a)

Antibody binding site on variable regions

(b)

Antibody binding site on heavy regions

(c)

Antigen binding site on variable regions

(d)

Antigen binding site on heavy regions

45.

The sporozoite of the malarial parasite is present in ______

(a)

saliva of infected female Anopheles mosquito

(b)

RBC of human suffering from malaria.

(c)

Spleen of infected humans

(d)

Gut of female Anopheles mosquito

46.

The Athlete’s foot disease in human is caused by _______

(a)

Bacteria

(b)

Fungi

(c)

Virus

(d)

Protozoan

47.

Amphetamines are stimulants of the CNS, whereas barbiturates are ______

(a)

CNS stimulant

(b)

both a and b

(c)

hallucinogenic

(d)

CNS depressants

48.

The mode of sexual reproduction in bacteria is by ______.

(a)

Formation of gametes

(b)

Endospore formation

(c)

Conjugation

(d)

Zoospore formation

49.

Which of the following is true about Rh factor in the offspring of a parental combination DdxDd (both Rh positive)?

(a)

All will be Rh-positive

(b)

Half will be Rh positive

(c)

About ¾ will be Rh negative

(d)

About one fourth will be Rh negative

50.

Three children of a family have blood groups A, AB and B. What could be the genotypes of their parents?

(a)

I^A I^B and I^oI^o

(b)

I^A I^o and I^BI^o

(c)

I^B I^B and I^A I^A

(d)

I^A I^A and I^oI^o

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Answers Key:

Multiple Choice Question

50 x 1 = 50

(a)
U-V Rays

(d)
Antigen

(b)
Microglia

(a)
Single stranded RNA

(a)
Metastasis

(b)
Regulate

(a)
Large number of progeny with small size

10.

(b)
Insects

11.

(d)
Commensalism

12.

(a)
Biome

13.

(a)
Copper

14.

(b)
Bioremediation

15.

(b)
Article 21

16.

(b)
Foreign DNA in all their cells

17.

(a)
Enzyme replacement therapy

18.

19.

(a)
Mammals

20.

(a)
Reduce BOD

21.

(d)
Trichoderma polysporum

22.

(b)
IUCN

23.

(d)
Saccharomyces cerevisiae - Ethanol

24.

(a)
Insitu conservation

25.

(d)
1400cc

26.

(a)
Mesozoic era

27.

(b)
August Weismann

28.

(a)
Theory of mutation

29.

(a)
Inhibition of spermatogenesis.

30.

31.

(b)
inhibiting release of FSH and LH

32.

(d)
Both (a) and (b) are correct.

33.

(b)
Replication occurs as each base is paired with another exactly like it

34.

(b)
Transcription

35.

36.

(d)
Capacitation

37.

(a)
Allantois

38.

(a)
Seminal vesicle

39.

40.

(b)
Females are homogametic and males are heterogametic

41.

(d)
All of these

42.

(a)
All carrier daughters and normal sons

43.

44.

45.

(a)
saliva of infected female Anopheles mosquito

46.

(b)
Fungi

47.

(d)
CNS depressants

48.

49.

(d)
About one fourth will be Rh negative

50.

(b)
I^A I^o and I^BI^o

TN 12th Standard Biology Zoology - Reproduction in Organisms Creative Questions Study Material - QB365 Set C

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Std: 12th Standard - Biology

chapter: Zoology - Reproduction in Organisms - Creative Questions

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Questions:

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