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XII G2 BIO ZOOLOGY

Total questions: 50

Worksheet time: 50mins

Name
Class
Date
1.

Dengue fever is spread by

a)

Anopheles mosquito

b)

Rats

c)

Culex mosquito

d)

Dogs

2.

Which of the following is sex-linked character?

a)

Anemia

b)

Cretinism

c)

Color blindness

d)

Tuberculosis

3.

The branch of science concerned with classification of organisms

a)

Taxonomy

b)

Ecology

c)

Neurology

d)

Botany

4.

What is the definition of evolution

a)

Organisms adapting

b)

Organisms changing

c)

Organisms growing

d)

A change in the gene pool within a species

5.

The synthesis of organic compounds explained with the help of experiment by-

a)

a Hanson and Huxley

b)

b urey and Miller

c)

c Haldane and oparin

d)

d Thomas Huxley

6.

The study of prehistoric lite through fossils is ----

a)

a Archeology

b)

b Paleontology

c)

c Geology

d)

d Dermatology

7.

The structure Which are similar in origin but perform different functions

a)

a convergent evolution

b)

b organic evolution

c)

c Divergent evolution

8.

organisms having different structural pattern but similar function are termed as

a)

a Analogous structures

b)

b Homologous structures

9.

The lymph node is - - - - - - - shaped

a)

a ovoid

b)

b bean

c)

C elliptical

d)

d amoeboid

10.

Which of the following organ first encounter the antigen

a)

a thymus

b)

b spleen

c)

C lymph node

d)

d none of the above

11.
A small injected dose of a pathogen that stimulates the production of antibodies is:
a)
histamine
b)
interferon
c)
pathogen
d)
vaccine
12.
An organism that enters a life form and causes disease or sickness is a/an:
a)
macrophage
b)
pathogen
c)
vaccine
d)
flu
13.
This refers to the type of immunity developed from exposure to a pathogen:
a)
active acquired immunity
b)
passive acquired immunity
c)
innate immunity
d)
attenuated immunity
14.

Find the odd one

Gonorrhoea, Hepatitis B, Genital Herpes, AIDS.

a)

Gonorrhoea

b)

Hepatitis B

c)

Genital Herpes

d)

AIDS

15.

Vasectomy is the permanent surgical method for females.

a)

True

b)

False

16.

POCSO Act is for

a)

Prevent children from sexual harassment

b)

Previntion, prohibition and redressal.

c)

women empowerment

d)

Preconception and both control

17.

___________ is used to treat infertile men with low sperm count.

a)

ZIFT

b)

ART

c)

Intra-Uterine Insemination

d)

In Vitro Fertilization

18.

Ultrasonography is usually performed in

a)

Fifth trimester

b)

Third trimester

c)

Eight trimester

d)

First trimester

19.

__________ involves taking a sample of amniotic fluid.

a)

ICSI

b)

ART

c)

Amniocentesis

d)

Chorionic villus sampling

20.

Which structure is the vas deferens?

a)

A

b)

B

c)

C

d)

D

21.

Which part is where fertilisation takes place?

a)

a

b)

b

c)

c

d)

d

e)

g

22.

Which label indicates the ovary?

a)

d

b)

i

c)

c

d)

h

e)

g

23.

Which structure is a corpus luteum?

a)

A

b)

B

c)

C

d)

E

e)

F

24.

Name the cell that supplies nutrients to spermatids while they develop into spermatozoa

a)

Sertoli cell

b)

Leydig cell

c)

seminiferous cell

d)

Germinal epithelium cell

e)

Prostate cell

25.

Where does oogenesis take place?

a)

Uterus

b)

Fallopian tubes

c)

Ovaries

d)

Vagina

26.

Which of the following are the male gametes?

a)

Ovaries

b)

Testes

c)

Spermatozoa

d)

Ova

27.

The male reproductive system produces sex hormones called

a)

Estrogen

b)

Progesterone

c)

Testosterone

d)

Andresterone

28.

What is the scrotum?

a)

A pouch of skin surrounding the testes

b)

A fold of skin that protects the penis

c)

An additional gland located at the end of the urethra

29.

Where is the genetic material (DNA) located in the spermatozoa?

a)

In the head

b)

In the tail

c)

In the middle piece

30.

The fallopian tubes connect

a)

the ovaries to the uterus

b)

the uterus to the vagina

c)

the ovaries to the vagina

31.
What kind of cells are made in MEIOSIS?
a)
Haploid Gametes
b)
Diploid Somatic Cells
c)
Skin Cells
d)
Liver Cells
32.
Diploid Cells are represented by
a)
2n
b)
n
c)
4n
d)
1/2 n
33.
When an area of a chromatid is exchanged with the matching area on a chromatid of its homologous chromosome, _________________ occurs
a)
crossing over
b)
mutagenesis
c)
hybridization
d)
fertilization
34.
The chromosomes that pair up during meiosis, are called __________ chromosomes.  
a)
homozygous 
b)
asexual
c)
homologous
d)
genes
35.
Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
36.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
37.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
38.

Sporogony of malarial parasite occurs in

a)

stomach wall of mosquito

b)

salivary glands of mosquito

c)

RBCs of man

d)

liver of man.

39.

Which of the following is a pair of viral diseases?

a)

common cold, AIDS

b)

dysentery, common cold

c)

typhoid, tuberculosis

d)

ringworm, AIDS

40.

Out of the following diseses which are caused due to bacterial infection?

A. Typhoid B. Elephantiasis C. Cholera D. Tuberculosis

a)

A, B

b)

B, C

c)

A, C, D

d)

A, B, C, D

41.

The antibodies produced during allergy are

a)

IG g type

b)

Ig M type

c)

Ig A type

d)

Ig E type

42.

Which of the following organisms is used in the production of beverages?

a)

Penicillium notatum

b)

Saccharomyces cerevisiae

c)

Aspergillus niger

d)

Clostridium butylicum

43.

The primary treatment of sewage involves –

a)

digestion

b)

decomposition

c)

sedimentation and filtration

d)

none of these

44.

Biogas contains –

a)

CO2

b)

H2S

c)

CH4

d)

all of these

45.

During which stage of sewage treatment microbes are used?

a)

Primary treatment

b)

Secondary treatment

c)

Tertiary treatment

d)

All of these

46.
Which procedure is the final step in the production of a transgenic organism?
a)
Recombinant DNA is transferred to a bacterial cell
b)
A specific gene in a DNA sequence is identified.
c)
The DNA segment is combined into a plasmid.
d)
The DNA segment to be inserted is isolated.
47.
Scientists have produced plants that are resistant to herbicides. Which application of biotechnology is most likely being used?
a)
genetic cloning
b)
recombinant DNA
c)
DNA fingerprinting
d)
genetic engineering
48.
How can humans best help an endangered species avoid extinction?
a)
They can feed the animals
b)
they can put the animals in a zoo
c)
they can protect the animals habitat
d)
they can take the animal to new habitats
49.

Parasitism is an mutualism between two organisms in which

a)

One is beneficial, while the other is harmed

b)

One is beneficial,other is unaffected

c)

Both of them are beneficial

d)

None of them

50.

Conditions of a karyotype 2n+1 and 2n ± \pm\  2 is called

a)

Monosomy

b)

Aneuploidy

c)

Alloploidy

d)

Polyploidy

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