Yeast reproduces through ____.

Correct! Wrong!

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Yeast reproduces asexually by budding.

Egg released by Graffian follicle is surrounded by ____.

Correct! Wrong!

Egg released by Graffian follicle is surrounded by zona pellucida.

Boys attain ____ % of their full height at the age of 9.

Correct! Wrong!

Boys attain 75 % of their full height at the age of 9.

____ has haploid chromosomes.

Correct! Wrong!

Secondary oocyte has haploid chromosomes as it is formed by the process of meiosis.

Polar bodies are formed during ____.

Correct! Wrong!

Polar bodies are formed during oogenesis.

Girls have a high pitch voice in puberty.

Correct! Wrong!

Larynx in females are small, it produces a high pitch voice.

Adam's apple is ____.

Correct! Wrong!

The growing voice box in males can be seen as a protruding part of the throat called Adam's apple.

In the male sperm, the mitochondria are located in the ____.

Correct! Wrong!

In the male sperm, the mitochondria are located in the middle piece.

Puberty ends when an adolescent reaches reproductive maturity.

Correct! Wrong!

Puberty ends when an adolescent reaches reproductive maturity.

The process in which a parent organism breaks up naturally to produce two or more daughter organisms is ____.

Correct! Wrong!

The breaking up of a multicellular organism into two or more parts on its own, where each part grows to form a new organism is called fragmentation.

The number of sperms produced from 24 secondary spermatocytes will be ____.

Correct! Wrong!

Each secondary spermatocyte will produce 2 spermatids which further mature to form the sperm. Hence the number of sperms produced from 24 secondary spermatocytes will be 48.

Amoeba reproduces by ____.

Correct! Wrong!

Amoeba reproduces asexually by splitting the body into two daughter individuals. This process is called binary fission.

The period of life, when the body undergoes changes leading to reproductive maturity is called ____.

Correct! Wrong!

The period of life, when the body undergoes changes, leading to reproductive maturity, is called adolescence.

In budding, repetitive meiotic divisions take place.

Correct! Wrong!

In budding, mitotic division occurs leading to bud formation. Young individuals develop from these buds.

Planaria is a ____.

Correct! Wrong!

Planaria is a fresh water flatworm.

During the formation of the ovum, meiosis I occurs in the ____.

Correct! Wrong!

During the formation of the ovum, meiosis I occurs in the primary oocyte.

Plasmodium is a parasite that causes ____.

Correct! Wrong!

Plasmodium is a parasite that causes malaria in human beings and some other vertebrates like birds.

Which of the following hormone is responsible for the development of the secondary sexual characters in males?

Correct! Wrong!

Testosterone is a male hormone secreted by testes and it is responsible for the development of the secondary sexual characters in males.

Antrum is the cavity of the ____.

Correct! Wrong!

Antrum is the cavity of the tertiary follicle.

Usually boys attain their maximum height before girls.

Correct! Wrong!

Females attain their maximum height at the age of 17 whereas males attain their maximum height at the age of 18 years. In general, both males and females attain their maximum height at the age of 18 years.

The part of spermatogenesis in humans which takes place while spermatids are associated with Sertoli cells is ____.

Correct! Wrong!

The part of spermatogenesis in humans which takes place while spermatids are associated with Sertoli cells is cell differentiation.

Yeast is a ____.

Correct! Wrong!

Yeast is a tiny, unicellular fungus widely used in fermentation.

The age of puberty in females is marked by a ____.

Correct! Wrong!

The age of puberty in females is marked by a wider region below the waist as a result of growth.

Males attain their maximum height at the age of ____.

Correct! Wrong!

In general, both males and females attain their maximum height at the age of 18 years.

Which among the following organisms have tentacles?

Correct! Wrong!

Hydra is a simple multicellular animal that has tentacles for locomotion and food capture.

Planaria reproduces through ____.

Correct! Wrong!

Planaria reproduces asexually by regeneration.

Hydra reproduces through ____.

Correct! Wrong!

Hydra reproduces asexually through budding.

Secondary sexual characters develop due to ____.

Correct! Wrong!

Secondary sexual characters develop due to activities of the sex hormone testosterone in males and estrogen in females.

Which of the following is not a correct statement ?

Correct! Wrong!

Release of ova from the ovary is called oogenesis - is not the correct match. This process is called ovulation.

Rhizopus reproduces asexually through ____.

Correct! Wrong!

Rhizopus reproduces asexually through spore formation.

ICSE Class 10th Biology 9 - Reproduction MCQs
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