Reproduction in Organisms Test

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Reproduction in Organisms Test - 72

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Weekly Quiz Competition

Question 1
1 / -0

Fusion of two gametes which are dissimilar in size is termed as

A
Oogamy

B
Isogamy

C
Anisogamy

D
Both A and C

Solution

In anisogamy the fusing gametes differ in size and behaviour. One of the two gametes is larger and is called macrogamete or female gamete; the other is smaller and is termed microgamete or male gamete. In oogamy, there is a large food laden non-flagellate female gamete called egg or oosphere whereas the male gamete or antherozoid is smaller and motile. Oogamy is the familiar form of sexual reproduction, it is a form of anisogamy (heterogamy).
So, the correct answer is 'Both A and C'.
Question 2
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Choose the correct answers from the alternatives given.
The principal embryonic membranes are

A
Chorion and umbilicus

B
Amnion and placenta

C
Amnion and chorion

D
Placenta and umbilicus

Solution

The placenta is an ephemeral organ found only in eutherian mammals during gestation. Placenta is the only organ composed of cells derived from two different organisms i.e. from the fetus and the mother. The fetal membranes are chorion and amnion. The membranes from the uterine wall are deciduas basalis. It is the portion of the deciduas which is directly adjacent to conception at the implantation site. Decidua is a mucous membrane lining the uterus during pregnancy and it cast off during childbirth. After the implantation of the embryo, the uterine endometrium is called decidua. Thus the principal embryonic membranes are Amnion and chorion.
So the correct option is ' Amnion and chorion '.
Question 3
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Match column I with column II and select the correct option from the codes given.
Column I Column II
A. Planaria (i) Binary fission
B. Fungi (ii) Asexual spores
C. Yeast (iii) Budding
D. Amoeba (iv) True regeneration

(v) Fragmentation

A
A-(i), B-(ii), C-(iii), D-(iv)

B
A-(iv), B-(ii), (v), C-(iii), D-(i)

C
A-(ii), B-(v), C-(i), D-(iv)

D
A-(v), B-(ii), (i), C-(iii), D-(iv)

Solution

Column I Column II
A. Planaria (iv) True regeneration
B. Fungi (ii) Asexual spores
(v) Fragmentation
C. Yeast (iii) Budding
D. Amoeba (i) Binary fission

So, the correct option is B.
Question 4
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Why asexual reproduction is sometimes disadvantageous?

A
It allows animals that do not move around to produce offspring without finding mates

B
It allows an animal to produce many offspring quickly

C
It saves the time and energy of gamete production

D
It produces genetically uniform populations

Solution

Asexual reproduction is a type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it does not involve the fusion of gametes, and almost never changes the number of chromosomes. It produces genetically uniform populations.
So, the correct option is 'Option D'.
Question 5
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Select the correct pairs
1) Polygamous Mango
2) Dioecious Silene
3) Trioecious Litchi
4) Monoecious Chara wallichill

A
A and B

B
A and C

C
B and D

D
C and D
Solution
1) Polygamous plants are those which have both males, females and bisexual flowers on the same plant.
Litchi produces a polygamous flower.
2) Dioecious plants have separate plants with either male flowers or female only.
Silene is dioecious.
3) Trioecious have three types of flowers on the same or on different plants some of the flowers being staminate, others pistillate, and others both.
Papaya is trioecious.
4) Monoecious plants have both male and female reproductive organs in the same flower.
Chara is monoecious.
So the correct answer is option C.
Question 6
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A phenomenon is termed as parthenogenesis when

A
Artificial fertilization occurs

B
Egg is fertilized by a sperm

C
Egg undergoes cleavage without fertilization

D
Sperm dies before fertilization

Solution

The term parthenogenesis was coined by Charles Bonnet. It is also called the virgin birth. Parthenogenesis refers to the process of formation of the organism from an unfertilized egg (it is a special type of asexual reproduction). Parthenogenesis is of the following three types:
1) Arrhenotoky: male develops parthenogenically.
2) Thelytoky: Female develops parthenogenically.
3) Amphytoky: Parthenogenesis results in any sex depending on environmental conditions.
So, considering all the information the correct answer is 'Egg undergoes cleavage without fertilization'.
Question 7
1 / -0

Read the following matches.

(i) Lily Compound tunicated bulb
(ii) Potato Tuber
(iii) Allium cepa Simple tunicated bulb
(iv) Allium sativum Scaly bulb

Which of these are correct?

A
(i), (ii) and (iii)

B
(ii), (iii) and (iv)

C
(ii) and (iii)

D
(iii) and (iv)

Solution

Potato is a tuber because they are underground stems. Allium cepa is simple tunicated bulb because the outer regions are fleshy. Allium sativum is a scaly bulb because they have leaked storage leaves.
So, the correct option is '(ii), (iii), (iv)'.
Question 8
1 / -0

Diploid zygote is formed by the fusion of male and female gamete. This process

A
Fertilization

B
Budding

C
Pollination

D
Spore

Solution

Budding is a type of asexual reproduction in which a new organism develops from an outgrowth or bud. Budding is a type of asexual reproduction in which a new organism develops from an outgrowth or bud. Fertilization is the process in which a diploid zygote is formed by the fusion of male and female gamete.

So, the correct option is'Fertilization'.
Question 9
1 / -0

How many of the following are examples of Rhizome.
Ginger, Turmeric, Canna, Water lily, Banana, Colocasia, Alocasia, Colchicum, Saffron.

A
Two

B
Four

C
Five

D
Eight

Solution

Answer is B.
Rhizome present in ginger, Turmeric, canna and banana.
Question 10
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Select the incorrect match.
(i) Pneumatophores Rhizophora
(ii) Culm stem Bamboo
(iii) Sucker Banana
(iv) Phylloclade Parkinsonian
(v) Offset Cynodon

A
(i), (ii) & (iii)

B
(iii), (iv) & (v)

C
(iv) & (v)

D
Only (v)

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Column I	Column II
A. Planaria	(i) Binary fission
B. Fungi	(ii) Asexual spores
C. Yeast	(iii) Budding
D. Amoeba	(iv) True regeneration
	(v) Fragmentation

Column I	Column II
A. Planaria	(iv) True regeneration
B. Fungi	(ii) Asexual spores (v) Fragmentation
C. Yeast	(iii) Budding
D. Amoeba	(i) Binary fission

1) Polygamous	Mango
2) Dioecious	Silene
3) Trioecious	Litchi
4) Monoecious	Chara wallichill

(i) Lily	Compound tunicated bulb
(ii) Potato	Tuber
(iii) Allium cepa	Simple tunicated bulb
(iv) Allium sativum	Scaly bulb

(i) Pneumatophores	Rhizophora
(ii) Culm stem	Bamboo
(iii) Sucker	Banana
(iv) Phylloclade	Parkinsonian
(v) Offset	Cynodon

Reproduction in Organisms Test - 72

Result

Reproduction in Organisms Test - 72

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SHARING IS CARING

Question 1

Oogamy

Isogamy

Anisogamy

Both A and C

Solution

Question 2

Chorion and umbilicus

Amnion and placenta

Amnion and chorion

Placenta and umbilicus

Solution

Question 3

A-(i), B-(ii), C-(iii), D-(iv)

A-(iv), B-(ii), (v), C-(iii), D-(i)

A-(ii), B-(v), C-(i), D-(iv)

A-(v), B-(ii), (i), C-(iii), D-(iv)

Solution

Question 4

It allows animals that do not move around to produce offspring without finding mates

It allows an animal to produce many offspring quickly

It saves the time and energy of gamete production

It produces genetically uniform populations

Solution

Question 5

A and B

A and C

B and D

C and D

Solution

Question 6

Artificial fertilization occurs

Egg is fertilized by a sperm

Egg undergoes cleavage without fertilization

Sperm dies before fertilization

Solution

Question 7

(i), (ii) and (iii)

(ii), (iii) and (iv)

(ii) and (iii)

(iii) and (iv)

Solution

Question 8

Fertilization

Budding

Pollination

Spore

Solution

Question 9

Two

Four

Five

Eight

Solution

Question 10

(i), (ii) & (iii)

(iii), (iv) & (v)

(iv) & (v)

Only (v)

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