Home
Class 12
BIOLOGY
The phenomenon observed in some plants w...

The phenomenon observed in some plants where in parts of the sexual apparatus is used for forming embryos without fertilisation is called

A

parthenocarpy

B

apomixis

C

vegetative propagation

D

sexual reporduction

Text Solution

Verified by Experts

The correct Answer is:
B

Apomixis is the term given to any phenomenon that leads to formation of embryo wherin parts of the sexual apparatus are used, but without fertilisation. Fertilisation is also absent in vegetative propagation, but parts of sexual apparatus are not involved. An example of apomixis is Citrus.
Promotional Banner

Similar Questions

Explore conceptually related problems

Assertion:Fruit is the mature or ripened ovary developed after fertilisation. Reason:Fruit formed without fertilisation of the ovary is called parthenocarpic fruit.

Which two of the following statements are incorrect regarding in vitro fertilisation ? (i) In this method, ova from the wife/donor female and sperms from the husband/donor male are induced to form zygote in the uterus (ii) If the embryo is having 2 blastomeres, it is transferred into the uterus (iii) If the embryo is with more than 8 blastomeres, it is transferred into the uterus. (iv) The baby thus produced is called test tube baby.

In some plants anthers and stigma grow and mature at same time. This phenomenon is called:

If a part of pith from the stem of a plant is used as an explant and cultured on nutrient medium, which of the following processes is responsible for the formation of an undifferentiated mass of cells called callus?

Read the following statements (i) Birth control pills are likely to cause cardiovascular problems (ii) A women who substitutes or takes the place of the real mother to nurse the embryo is called surrogate mother (iii) Numerous children have been produced by in vitro fertilisation but with some abnormalities (iv) Women plays a key role in the continuity of the family and human species (v) Foetal sex determinatio test should not be banned Which of the following pair consists of incorrect statements

Fill in the blanks with correct answers from the choices given in the brackets of each bit The plant part used in tissue culture is called.......... (cells, zygote, explant, , gamete)

Assertion : In plants, apomixis is a form of asexual reporduction that minics sexual reproduction. Reason : Apomixis involves the production of seeds without the fusion of gametes.