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प्रश्न
Complete the following table to get the differences between asexual and sexual reproduction:
| Characteristics | Asexual Reproduction | Sexual Reproduction |
| Number of parents involved | ........................... | .............................. |
| Type of cells involved | Somatic cells | Germ cells |
| Type of cell division | ............................ | Meiosis and mitosis |
उत्तर
| Characteristics | Asexual Reproduction | Sexual Reproduction |
| Number of parents involved | One | Two |
| Type of cells involved | Somatic cells | Germ cells |
| Type of cell division | Mitosis | Meiosis and mitosis |
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संबंधित प्रश्न
No two individuals are absolutely alike in a population. Why?
What is the effect of DNA copying, which is not perfectly accurate, on the reproduction process? How does the amount of DNA remain constant though each new generation is a combination of DNA copies of two individuals?
What is amphimixis?
A new human individual develops from a cell called gamete.
Difference between an annual and biennial plants. Provide one example of each.
Write the importance of sexual reproduction in nature.
Advantages of sexual reproduction.
Name the male and female gametes in animals.
Describe the various steps involved in the sexual reproduction in animals. Draw labelled diagrams to show the fertilisation of an ovum (or egg) by a sperm to form a zygote
Distinguish between a gamete and a zygote.
Characters that are transmitted from parents to offspring during sexual reproduction show :
(a) only similarities with parents
(b) only variations with parents
(c) both similarities and variations with parents
(d) neither similarities nor variations with parents
The correct sequence of organs in the male reproductive system for the transport of sperms is:
(a) testis → vas deferens → urethra
(b) testis → ureter → urethra
(c) testis → urethra → ureter
(d) testis → vas deferens → ureter
One of the following process does not lead to the formation of clones. This is :
(a) fission
(b) fertilisation
(c) fragmentation
(d) tissue culture
Put a tick mark (✓) against the correct alternative in the following statement:
Which one of the following represents the correct sequence in the life history of a butterfly ?
- Egg → Larva → Adult → Pupa
- Egg → Pupa → Adult → Larva
- Egg → Larva → Pupa → Adult
- Egg → Pupa → Larva → Adult
Distinguish between the following pair of terms:
Sexual reproduction and asexual reproduction.
Define the term Fetilization.
How does a single called fertilized egg grows into an adult human body?
Name the organ involved in the following:
Passing of sperms from a man to a woman.
Describe the different methods of asexual reproduction in animals.
Adolesecence is considered a critical stage in the life of boys and girls. Explain this statement.
Explain why variations are observed in the offsprings of sexually reproducing organisms?
Answer in one sentence.
Enlist the external genital organs in the female.
Explain the histological structure of testis.
What is atresia with respect to ovary in human females?
Describe the histology of testis with help of labelled diagram.
Animals which give birth to young ones directly are named as ______.
Choose the correct statement from the following:
Animals giving birth to young ones: ______
Identify the INCORRECT statement.
Choose the correct statements from the options below:
A few statements with regard to sexual reproduction are given below:
- Sexual reproduction does not always require two individuals
- Sexual reproduction generally involves gametic fusion
- Meiosis never occurs during sexual reproduction
- External fertilisation is a rule during sexual reproduction
Oestrus cycle is seen in ______.
Characters that are transmitted from parents to offspring during reproduction show ______
Animals in which an embryo develops outside the body are called ______ animals.
______ lay thousands and sometimes millions of small, soft eggs in water.
The eggshell protects the ______ from the outer environment.
What are oviparous animals?
Zygote develop a thick wall that is resistant to dessication and damage is present in ______.
Between an annual and a perennial plant, which one has a shorter juvenile phase? Give one reason.
Enumerate the differences between asexual and sexual reproduction. Describe the types of asexual reproduction exhibited by unicellular organisms.
