Class 10 Practice - Level 3 - How Do Organisms Reproduce? - Set 2

Total questions: 15

Which of the following best explains the importance of meiosis in sexual reproduction?

Topic: Genetic Variation in Sexual Reproduction

It produces identical offspring.

It reduces the chromosome number by half in gametes.

It ensures rapid population growth.

It eliminates genetic disorders.

None

What is the function of human chorionic gonadotropin (hCG) during early pregnancy?

Topic: Hormonal Control in Reproductive Systems

Stimulates ovulation

Maintains the corpus luteum

Induces labour contractions

Triggers menstruation

None

Which technique involves the direct transfer of eggs and sperm into the fallopian tubes?

Topic: Assisted Reproductive Technologies

In vitro fertilization (IVF)

Intracytoplasmic sperm injection (ICSI)

Artificial insemination

Gamete intrafallopian transfer (GIFT)

None

During which stage of embryonic development do the three germ layers form?

Topic: Embryo Development

Blastocyst

Morula

Gastrula

Neurula

None

What role does the hypothalamus play in the menstrual cycle?

Topic: Menstrual Cycle Regulation

It directly stimulates the ovaries to produce eggs.

It regulates the release of gonadotropin-releasing hormone (GnRH).

It maintains the uterine lining.

It produces estrogen and progesterone.

None

What is the function of the seminal vesicles in the male reproductive system?

Topic: Human Reproductive System

Produce sperm

Store sperm

Produce seminal fluid

Regulate testosterone levels

None

How does the zona pellucida function in fertilization?

Topic: Fertilization

It produces the egg cell.

It releases enzymes to attract sperm.

It prevents polyspermy by hardening after fertilization.

It nourishes the developing embryo.

None

What role do sepals play in the reproduction of flowering plants?

Topic: Sexual Reproduction in Plants

Produce pollen

Attract pollinators

Protect the developing flower bud

Facilitate seed dispersal

None

How do oral contraceptive pills prevent pregnancy?

Topic: Reproductive Health

They destroy sperm cells.

They prevent the implantation of the fertilized egg.

They inhibit ovulation by regulating hormone levels.

They block the fallopian tubes.

None

10.

Which technique can be used to screen embryos for genetic disorders before implantation?

Topic: Genetic Disorders

Amniocentesis

Chorionic villus sampling (CVS)

Preimplantation genetic diagnosis (PGD)

Ultrasound imaging

None

11.

Which of the following is a benefit of parthenogenesis?

Topic: Reproductive Strategies

Increased genetic diversity

Faster population growth

Requires fertilization by a male

Produces genetically identical offspring

None

12.

Which hormone is primarily responsible for the thickening of the endometrium during the follicular phase?

Topic: Hormonal Control in Female Reproductive

Estrogen

Progesterone

Luteinizing hormone (LH)

Follicle-stimulating hormone (FSH)

None

13.

In seed plants, what is the primary function of the endosperm?

Topic: Plant Reproduction

Protect the seed

Nourish the developing embryo

Facilitate pollination

Aid in seed dispersal

None

14.

Which technology involves the combination of eggs and sperm outside the body, followed by the transfer of embryos to the uterus?

Topic: Reproductive Technologies

In vitro fertilization (IVF)

Intracytoplasmic sperm injection (ICSI)

Artificial insemination

Gamete intrafallopian transfer (GIFT)

None

15.

Which structure forms the basis of the placenta during pregnancy?

Topic: Fertilization and Development

Amniotic sac

Yolk sac

Chorion

Allantois

None

1 out of 15

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Class 10 Practice - Level 3 - How Do Organisms Reproduce? - Set 2

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