Science M.C.Q. [I MARKS]

Reproduction by budding takes place in

In the list of animals given below, hen is the odd one out. Human being, cow, dog, hen. The reason for this is

Aquatic animals in which fertilisation occurs in water are said to be

Animals exhibiting external fertilisation produce a large number of gametes. Pick the appropriate reason from the following

In human beings, the correct sequence of events during reproduction is

After fertilisation, the resulting cell which gives rise to a new individual is the

Sets of reproductive terms are given below. Choose the set that has an Incorrect combination.

Where does the fertilisation of eggs occur in the process of In Vitro Fertilisation (IVF) ?

Which of these animals reproduce by external fertilisation ?

Assertion (A) Cloning of an animal was successfully performed for the first time by lan Wilmut and his colleagues.
Reason (R) Cloning is the production of different copy of a cell or any living part or a complete organism.

Assertion (A) During metamorphosis tadpole is transformed into caterpiliar.
Reason (R) Metamorphosis is a process in which a larva is transformed into an adult.

The multicellular organism which reproduces by budding is

Select the animal which undergoes metamorphosis during its life cycle.

Which example correctly depicts the difference between a viviparous and an oviparous animal respectively ?

The process of internal fertilisation differs from external fertilisation as

Sexual reproduction begins with

Assertion (A) Binary fission and budding are two methods of asexual reproduction.
Reason (R) Only a single parent is involved.

Assertion (A) Human beings do not undergo metamorphosis.
Reason (R) The body parts in adults are not similar to those of babies.

Assertion (A) It is easy to collect the eggs of viviparous animals.
Reason (R) They lay egg outside their body.

Assertion (A) Internal fertilisation occurs in many animals including humans, cows, dogs and hens.
Reason (R) Fertilisation which takes place inside the female body in called internal fertilisation.

Assertion (A) The animals which undergo external fertilisation lay hundreds of eggs.
Reason (R) to enhance the chances for fertilisation.

The production of an exact copy of an animal by asexual reproduction is known as

Reproduction by binary fission occures in

Tadpole is the larva of

Which of the following is not a viviparous animal ?

Which is not oviparous animal ?

Baby before being born is termed as

In humans, the development of fertilised egg takes place in the

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

Internal fertilisation occurs

A stage of sexual reproduction is represented below. Select the correct statement describing the process shown in the image.

Which of the following statements about reproduction in humans is correct ?

Which of the following is not a part of the human male reproductive system ?

The number of nuclei present in a zygote is

A tadpole develops into an adult frog by the process of

Internal fertilisation occurs