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प्रश्न
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the female gamete?
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उत्तर
The number of chromosomes in a female gamete is equal to the number of chromosomes in a male gamete, i.e., 24.
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संबंधित प्रश्न
A student identified the various parts of an embryo of a gram seed and listed them as given below :
(I) Testa
(II) Plumule
(III) Radicle
(IV) Cotyledon
(V) Tegmen
Out of these the actual parts of the embryo are :
(A) I, II, III
(B) II, III, IV
(C) III, IV, V
(D) II, IV, V
The anther contains ______.
The fusion of male and female gametes is termed as ______.
The reproductive part of a plant is the ______.
What are the reproductive organs in a flower?
Fill in the following blank with suitable word :
The.......... at the base of the carpel contains egg cells.
Explain the terms 'cross-pollination'?
(a) Draw a neat diagram of a flower showing its various parts. In this diagram mark stem, receptacle, sepals, petals, stamen and carpel.
(b) What name is given to (i) all the petals of a flower, and (ii) all the sepals of a flower?
(c) What are (i) stamen, and (ii) carpel, in a flower?
(d) What is the other name of carpel of a flower?
(e) What is the name of yellow powdery substance present in the anther of a flower?
The length of pollen tube depends on the distance between :
(a) pollen grain and upper surface of stigma
(b) pollen grain on upper surface of stigma and ovule
(c) pollen grain in anther and upper surface of stigma
(d) upper surface of stigma and lower part of style
Multiple choice question. Tick (✓) the correct choice:
The male gamete is present inside the which germinates.
- the style
- the stigma
- the anther
- the ovary
Fill in the blanks:
A carpel consists of ________ , ________ and ________.
Find the odd one out:
Bisexual : Hibiscus : : Unisexual : ___________
Generally, in a pollen tube, which of the following moves to the tip of the tube?
What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its roots tip cells?
The flower of the Hibiscus plant is ______
The seed that contains the future plant is called the ______
The ovaries of different flowers may contain ______.
In male reproductive whorl of a flower the archesporial cells are formed by ______.
