The term ‘clone’ cannot be applied to offspring formed by sexual reproduction because:
1. | Offspring do not possess exact copies of parental DNA |
2. | DNA of only one parent is copied and passed on to the offspring |
3. | Offspring are formed at different times |
4. | DNA of the parent and offspring are completely different. |
Assertion (A): | The term clone can be used to describe the progeny of asexual reproduction. |
Reason (R): | The progeny of asexual reproduction are morphologically and genetically similar individuals. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | (A) is false but (R) is true. |
I: | The nucleus does not divide at all and the bud does not have genetic material. |
II: | The division is unequal and small buds are produced that remain attached initially to the parent cell which, eventually get separated and mature into new yeast organisms. |
1. | Only I | 2. | Only II |
3. | Both I and II | 4. | Neither I nor II |
Asexual method of reproduction by binary fission is common to which of the following?
1. | Some eukaryotes |
2. | All eukaryotes |
3. | Some prokaryotes |
4. | All prokaryotes |
Choose the correct option from the following:
1. | i and ii | 2. | ii and iii |
3. | i and iii | 4. | iii and iv |
Encystation during unfavorable conditions followed by multiple fission and sporulation when favorable conditions return is seen in:
1. | Sponges | 2. | Penicillium |
3. | Amoeba | 4. | Hydra |
Identify the incorrect statement :
1. | In asexual reproduction, the offspring produced are morphologically and genetically identical to the parent |
2. | Zoospores are sexual reproductive structures |
3. | In asexual reproduction, a single parent produces offspring with or without the formation of gametes |
4. | Conidia are asexual structures in Penicillium |
Match the asexual reproductive structure in COLUMN I with organisms in COLUMN II and select the correct option from the codes given:
|
COLUMN I |
|
COLUMN II |
A. |
Zoospore |
a. |
Penicillium |
B. |
Conidia |
b. |
Chlamydomonas |
C. |
Buds |
c. |
Sponge |
D. |
Gemmule |
d. |
Hydra |
Options: | (A) | (B) | (C) | (D) |
1. | a | b | c | d |
2. | d | c | b | a |
3. | c | d | a | b |
4. | b | a | d | c |
Match vegetative propagules in COLUMN I with plants in COLUMN II and select the correct option from the codes given:
|
COLUMN I |
|
COLUMN II |
A. |
Rhizome |
a. |
Bryophyllum |
B. |
Bulbil |
b. |
Eichhornia |
C. |
Leaf buds |
c. |
Ginger |
D. |
Offset |
d. |
Agave |
Options: | (A) | (B) | (C) | (D) |
1. | a | b | c | d |
2. | d | c | b | a |
3. | c | d | a | b |
4. | b | a | d | c |
I. | (a) shows aplanospores in Chlamydomonas |
II. | (b) shows exogenous basidia in smut fungus |
III. | (c) shows budding in Hydra |
IV. | (d) shows gemmules in sponge |
1. | Only I and II | 2. | Only II and III |
3. | Only II and IV | 4. | Only I and III |
COLUMN I | COLUMN II | ||
A | P | Bulbil | |
B | Q | Rhizome | |
C | R | Offset | |
D | S | Adventitious buds |
A | B | C | D | |
1. | Q | P | S | R |
2. | P | Q | R | S |
3. | P | Q | S | R |
4. | Q | P | R | S |