Gymnosperms are homosporous i.e. they contain similar spores.

The x-axis shows the temperature and the y-axis shows the killing time. This is with respect to spores in a suspension. Curve a = 100,000 spores/ml and b= 1,000 spores/ml. Above curve a is the region of spores killed and below the region b is the region of spores survived. Which of the following do we comprehend from the above?

A

Greater the spore concentration, more heat resistant the suspension

B

Spores of a given strain, all have the same heat resistance

C

Spores of the same strain have many spores of low heat resistance

D

Spores of the same strain have very few spores of high heat resistance

Consider the following statements regarding the embryological evidences for evolution and choose the correct answer:
1. Algae are much advanced than mosses and ferns
2. Protonema of mosses resemble certain green algae
3. Both bryophytes and pteridophytes have ciliated sperms and require water for fertilization
4. Gymnosperms do not need water for fertilization
5. Cycads and Gingko, the primitive gymnosperms, have ciliated sperms like the pteridophytes

A

Only 2, 3 and 4 are true

B

Only 1, 2, 3 and 4 are true

C

Only 3, 4 and 5 are true

D

Only 2, 3, 4 and 5 are true

Statement 1: Spores heated in soil directly are more heat resistant than ones which are mixed with sterile soils and then heated. Statement 2: Thermophilic bacteria which form spores in artificial media are more heat resistant than those formed on machinery in canning plants.

A

True, False

B

True, True

C

False, False

D

False, True

The spores which are produced typically by the binucleate mycelium and mainly function as repeating spores for the spread of rust disease in wheat is called

A

Aeciospores

B

Basidiospores

C

Urediospores

D

Ascospores

Consider the following statements and choose the correct answer:
1. Spores of pine are borne in cones
2. In pine, the sporophyte is the smaller generation and after germination is dependent
3. In pine, there are two kinds of spores - microspores and megaspores
4. The male gametophyte of pine is a dependent structure and is reduced to six cells

A

Only 2 and 3 are true

B

Only 1, 2 and 4 are true

C

Only 1, 3 and 4 are true

D

Only 2 and 4 are true

Consider the following statements regarding the symptoms of loose smut of wheat and choose the correct answer:
1. The smutted ears from the boot leaves a little earlier than the healthy ones
2. All the ovaries and other floral parts including the awns and rachics are converted into masses of smut spores
3. The spores of each spikelet are covered by a thin greyish or silvery membrane
4. The ear is generally completely destroyed

A

Only 2 and 4 are true

B

Only 1, 2 and 3 are true

C

Only 1 and 3 are true

D

1, 2, 3 and 4 are true

The following question has two statements. Study the question and the statements and decide which of the statement(s) is/are necessary to answer the question. Each of the 20 racks of garment shop contains either only shirts, only jeans, or a mixture of shirts and jeans, how many racks contain only shirts? Statement I: 18 racks contain jeans and 14 racks contain shirts. Statement II: 6 racks contain jeans only.

A

Statement I alone is sufficient to answer the question.

B

Statement II alone is sufficient to answer the question.

C

Either statement I or statement II alone is sufficient to answer the question.

D

Statement I and statement II together are sufficient to answer the question.

E

Statement I and statement II together are not sufficient to answer the question.

The gypsys are a tribe of strange people. They do not have any fixed home but wander about from place to place and live in tents. they were originally natives of India. But as they reached England from Egypt ,the English took them from Egyptians. this is why they came to be called gypsys. they were beloved to possess strange powers. they could tell your fortune by reading the palm of your hand. it was thought they stole little children to train them in their way of life. whenever a child got lost it was thought that it has been carried away by gypsys so they were arrested and sent for trial. but this attitude towards the Gypsy has gradually changed.The gypsies are people who ---

A

have a settled way of life

B

came originally from Egypt to England

C

are always on the move

D

steal children to train them in the way of life

In a town fair 50 people were asked which dessert they liked: ice cream, Donuts, or cupcakes. 28 said they like ice cream, 26 said they like donuts, and 26 said they like cupcakes. 8 said they like all three. 17 said they like donuts and cupcakes, 11 said they like ice cream and cupcakes. 5 said they do not like any of these. Find those people who liked ice cream and donuts but not cupcakes.

A

10

B

7

C

5

D

9

E

None of the above

In the following question, sentences of a paragraph have been jumbled and labelled as P, Q, R and S. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. P: They are defects, not in the heart, but in the brain; for they take place in the stoutest natures; as in the example of Henry the Seventh of England. Q: Certainly they are to be repressed, or at least well guarded: for they cloud the mind; they lease friends; and they hinder in business, whereby business cannot go on currently and constantly. R: Suspicions amongst thoughts are like bats amongst birds, they ever fly by twilight. S: They dispose of kings to tyranny, husbands to jealousy, wise men to irresolution and melancholy.

A

RQPS

B

SRQP

C

PQRS

D

RQSP

Gymnosperms are homosporous i.e. they contain similar spores.

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