Reproduction in Organisms Test

Result

Reproduction in Organisms Test - 66

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

In human beings, after fertilisation, the structure which gets embedded in the wall of uterus is

A
Ovum

B
embryo

C
Foetus

D
zygote

Solution

The structure that gets embedded in the wall of the uterus is the 16 celled or 32 celled zygote.
So, the correct answer is 'zygote'
Question 2
1 / -0

A few statements with regards to sexual reproduction are given below:
(i) Sexual reproduction does not always require two individuals
(ii) Sexual reproduction generally involves gametic fusion
(iii) Meiosis never occurs during sexual reproduction
(iv) External fertilisation is a rule during sexual reproduction
Choose the correct statements from the options below:

A
(i) and (iv)

B
(i) and (ii)

C
(ii) and (iii)

D
(iii) and (iv)

Solution

In some cases, both the sexes are present in the some individual and in some of those cases, both the gametes from the same individual are involved in fertilization, e.g. self-pollination in many flowering plants and some hermaphrodite animals. Fusion of gametes, that is, fertilization is an important step in sexual reproduction.
So, the correct answer is (i) and (ii)
Question 3
1 / -0

A few statements describing certain features of reproduction are given below:
(i) Gametic fusion takes place.
(ii) Transfer of genetic material takes place
(iii) Reduction division takes place
(iv) Progeny have some resemblance with parents
Select the options that are true for both asexual and sexual reproduction from the options given below :

A
(i) and (ii)

B
(ii) and (iii)

C
(ii) and (iv)

D
(i) and (iii)

Solution

Gametic fusion and reduction division take place only in case of sexual reproduction.
The transfer of genetic material takes place from parents to progeny due to mitosis in asexual reproduction and by meiosis in sexual reproduction.
In asexual reproduction the progeny completely resembles the parent while in sexual reproduction the progeny has certain degree of similarity with the parents.
So, the correct answer is '(ii) and (iv)'
Question 4
1 / -0

Which one of the following is oviparous ?

A
Platypus

B
Flying fox

C
Elephant

D
Whale

Solution

$$\textbf{Correct option: (A)}$$

$$\textbf{Explanation for correct option:}$$

$$\bullet$$ $$Ornithorhynchus$$ (duck-billed platypus) comes under class Mammalia and sub-class Prototheria, which are egg-laying mammals (oviparous).

$$\bullet$$ Flying-fox, elephant, and whale are eutherian mammals (sub-class Theria) that are viviparous (give birth to young ones).
Question 5
1 / -0

Birds are -

A
Oviparous

B
Viviparous

C
Placental animal

D
Having teeth in their mouth

Solution

Birds are oviparous as they lay eggs.
So, the correct answer is 'Oviparous'
Question 6
1 / -0

Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because:

A
Sexual reproduction is a lengthy process

B
Gametes of parents have qualitatively different genetic composition

C
Genetic material comes from parents of two different species

D
Greater amount of DNA is involved is sexual reproduction.

Solution

During the process of gametogenesis in male and female organism of a species, genetic recombination occurs during Pachytene phase of Prophase I and independent assortment in Anaphase I. Thus, the gametes formed are genetically non-identical to the parent cell. The fusion of two such gametes, during sexual reproduction, produces an offspring with a genetic composition slightly distinct from both the parents.
So, the correct answer is 'Gametes of parents have qualitatively different genetic composition'
Question 7
1 / -0

A dicotyledonous plant bears flowers but never produces fruits and seeds. The most probable cause for the above situation is:

A
Plant is dioecious and bears only pistillate flowers.

B
Plant is dioecious and bears both pistillate and staminate flowers.

C
Plant is monoecious and bears only staminate flowers.

D
Plant is dioecious and bears only staminate flowers.

Solution

A dicotyledonous plant with flowers but no fruits and seeds could be a staminate (male) flower, with the plant being dioecious, that is, bearing male and female flowers on two separate plants. Here, the plant bearing female or pistillate flowers will give rise to friuts and seeds. These plants undergo cross pollination, majorly through Anemophily.
Example, Carica papaya
So, the correct answer is 'Plant is dioecious and bears only staminate flowers.'
Question 8
1 / -0

There are various types of reproduction. The type of reproduction adopted by an organism depends on :

A
The habitat and morphology of the organism

B
Morphology of the organism

C
Morphology and physiology of the organism

D
The organism's habitat, physiology and genetic makeup
Question 9
1 / -0

Choose the correct statements from amongst the following:

A
Dioecious organisms are seen only in animals.

B
Dioecious organisms are seen only in plants

C
Dioecious organisms are seen in both plants and animals

D
Dioecious organisms are seen only in vertebrates

Solution

Dioecious organisms are those with distinct reproductive structures, that is, organisms having either male or female reproductive structures. These organisms may also be morphologically distinct (sexual dimorphism) as in Humans, Ascaris etc
In plants though the morphological distinction is not very conspicuous, they can be dioecious, that is, androecium and Gynoecium on two distinct plants as in Papaya, or as plant with male cones and female cones respectively in Pinus.
So, the correct answer is 'Dioecious organisms are seen in both plants and animals'
Question 10
1 / -0

Which one of the following organisms reproduces sexually only once in its life time?

A
Banana plant

B
Mango

C
Tomato

D
Eucalyptus

Solution

Banana is a monocarpic plant, that is, it produces flowers and fruits only once in its lifetime. Death follows flowering and fruiting due to certain phytohormones that channelize the stored food reserves towards the development of fruits and seeds.
So, the correct answer is ' Banana plant'

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Reproduction in Organisms Test - 66

Result

Reproduction in Organisms Test - 66

Score

-

Rank

-

SHARING IS CARING

Question 1

Ovum

embryo

Foetus

zygote

Solution

Question 2

(i) and (iv)

(i) and (ii)

(ii) and (iii)

(iii) and (iv)

Solution

Question 3

(i) and (ii)

(ii) and (iii)

(ii) and (iv)

(i) and (iii)

Solution

Question 4

Platypus

Flying fox

Elephant

Whale

Solution

Question 5

Oviparous

Viviparous

Placental animal

Having teeth in their mouth

Solution

Question 6

Sexual reproduction is a lengthy process

Gametes of parents have qualitatively different genetic composition

Genetic material comes from parents of two different species

Greater amount of DNA is involved is sexual reproduction.

Solution

Question 7

Plant is dioecious and bears only pistillate flowers.

Plant is dioecious and bears both pistillate and staminate flowers.

Plant is monoecious and bears only staminate flowers.

Plant is dioecious and bears only staminate flowers.

Solution

Question 8

The habitat and morphology of the organism

Morphology of the organism

Morphology and physiology of the organism

The organism's habitat, physiology and genetic makeup

Question 9

Dioecious organisms are seen only in animals.

Dioecious organisms are seen only in plants

Dioecious organisms are seen in both plants and animals

Dioecious organisms are seen only in vertebrates

Solution

Question 10

Banana plant

Mango

Tomato

Eucalyptus

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.