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Question (11)

QN008209

Which type of fertilisation occurs outside the female body?

(A) Internal fertilisation
(B) Double fertilisation
(C) External fertilisation
(D) Artificial fertilisation

Correct Answer: C

Explanation:

External fertilisation occurs outside the female body.

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Question (12)

QN008210

External fertilisation is most common in

(A) desert animals
(B) aquatic animals
(C) birds only
(D) reptiles only

Correct Answer: B

Explanation:

Aquatic animals commonly show external fertilisation.

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Question (13)

QN008211

Which type of fertilisation occurs inside the female body?

(A) External fertilisation
(B) Internal fertilisation
(C) Budding
(D) Binary fission

Correct Answer: B

Explanation:

Internal fertilisation occurs inside the female body.

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Question (14)

QN008212

Mammals generally produce fewer offspring because

(A) they reproduce by spores
(B) parental care is greater
(C) fertilisation does not occur
(D) they lack reproductive organs

Correct Answer: B

Explanation:

Mammals provide greater parental care to offspring.

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Question (15)

QN008213

Which group of animals generally shows internal fertilisation?

(A) Frogs
(B) Most mammals
(C) Starfish only
(D) Fish only

Correct Answer: B

Explanation:

Most mammals show internal fertilisation.

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Question (16)

QN008214

A zygote formed after fertilisation undergoes repeated

(A) meiosis
(B) budding
(C) mitosis
(D) fragmentation

Correct Answer: C

Explanation:

Zygote undergoes repeated mitotic divisions.

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Question (17)

QN008215

If a zygote divides 6 times by mitosis, how many cells are formed?

(A) 16
(B) 32
(C) 64
(D) 128

Correct Answer: C

Explanation:

Number of cells formed = 2^6 = 64.

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Question (18)

QN008216

Which stage directly follows zygote formation in humans?

(A) Gamete
(B) Embryo
(C) Ovule
(D) Pollen grain

Correct Answer: B

Explanation:

Embryo stage follows zygote formation.

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Question (19)

QN008217

A baby develops inside the mother’s

(A) testes
(B) uterus
(C) kidney
(D) liver

Correct Answer: B

Explanation:

Baby develops inside the uterus.

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Question (20)

QN008218

Implantation means

(A) release of sperm
(B) shedding of uterine lining
(C) attachment of embryo to uterus wall
(D) formation of gametes

Correct Answer: C

Explanation:

Implantation is attachment of embryo to uterus wall.

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Question (11)

Which type of fertilisation occurs outside the female body?

Explanation:

Link:

Question (12)

External fertilisation is most common in

Explanation:

Link:

Question (13)

Which type of fertilisation occurs inside the female body?

Explanation:

Link:

Question (14)

Mammals generally produce fewer offspring because

Explanation:

Link:

Question (15)

Which group of animals generally shows internal fertilisation?

Explanation:

Link:

Question (16)

A zygote formed after fertilisation undergoes repeated

Explanation:

Link:

Question (17)

If a zygote divides 6 times by mitosis, how many cells are formed?

Explanation:

Link:

Question (18)

Which stage directly follows zygote formation in humans?

Explanation:

Link:

Question (19)

A baby develops inside the mother’s

Explanation:

Link:

Question (20)

Implantation means

Explanation:

Link:

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