Biology Test

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Biology Test - 39

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Weekly Quiz Competition

Question 1
1 / -0

Chlorosis is produced in the leaves due to the deficiency of Fe, Mg, Mn, S or N. Out of these essential elements, those that are exclusive constituents of chlorophyll molecule are

A

Mg, N

B

Mg, S

C

N, S

D

Fe, S
Question 2
1 / -0

The dominant epistasis ratio is

A

9 : 3 : 4

B

9 : 3 : 3 : 1

C

12 : 3 : 1

D

9 : 6 : 1
Question 3
1 / -0

Drosera catches insects by means of

A

Tentacles secreting shining liquid

B

Bladder

C

Pitcher

D

Adhesive disc
Question 4
1 / -0

Steroid diosgenin obtained from a yam (Dioscorea) is used to make an

A

anti-cancer drug

B

anti-coagulant

C

anti-fertility pill

D

anti-AIDS drug
Question 5
1 / -0

Carbamate pesticides act by combining with acetylcholine esterase enzyme. Which of the following is/are carbamate(s)?

A

Propoxur (baygon)

B

Carbofuran (furadan)

C

Aldicarb (temik)

D

All of these
Question 6
1 / -0

'Antiparallel strands' of a DNA molecule means that

A

the phosphate groups at the start of two DNA strands are in opposite positions (pole)

B

the phosphate groups of two DNA strands at their ends, share the same position

C

one strand turns anti-clockwise

D

one strand turns clockwise
Question 7
1 / -0

Echidna and Ornithorhynchus are the connecting links between

A

mammals and amphibians

B

reptiles and mammals

C

amphibians and aves

D

reptiles and amphibians
Question 8
1 / -0

Litmus is obtained from

A

Roccella montagnei

B

Lasallia pustulata

C

Both Roccella montagnei and Lasallia pustulata

D

Cladonia crispata
Question 9
1 / -0

The “Cri-du-chat” syndrome is caused by change in chromosome structure involving

A

translocation

B

inversion

C

duplication

D

deletion
Question 10
1 / -0

The pollination of two flowers on different plants is known as

A

xenogamy

B

geitonogamy

C

cleistogamy

D

dichogamy

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Biology Test - 39

Result

Biology Test - 39

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Rank

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SHARING IS CARING

Question 1

Mg, N

Mg, S

N, S

Fe, S

Question 2

9 : 3 : 4

9 : 3 : 3 : 1

12 : 3 : 1

9 : 6 : 1

Question 3

Tentacles secreting shining liquid

Bladder

Pitcher

Adhesive disc

Question 4

anti-cancer drug

anti-coagulant

anti-fertility pill

anti-AIDS drug

Question 5

Propoxur (baygon)

Carbofuran (furadan)

Aldicarb (temik)

All of these

Question 6

the phosphate groups at the start of two DNA strands are in opposite positions (pole)

the phosphate groups of two DNA strands at their ends, share the same position

one strand turns anti-clockwise

one strand turns clockwise

Question 7

mammals and amphibians

reptiles and mammals

amphibians and aves

reptiles and amphibians

Question 8

Roccella montagnei

Lasallia pustulata

Both Roccella montagnei and Lasallia pustulata

Cladonia crispata

Question 9

translocation

inversion

duplication

deletion

Question 10

xenogamy

geitonogamy

cleistogamy

dichogamy

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