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In a bisexual flower, the parts that produce male and female gametes (germcells) are
Anther produces pollen grain while ovary produces egg.
In the list of organisms given below, those that reproduce by the asexual method are
Asexual reproduction is the mode of reproduction in single parent produces offsprings. Amoeba reproduces asexually by binary fission. Asexual reproduction occurs in yeast by means of budding and in banana asexual reproduction occur by means of vegetative propagation from the stem. Thus, the correct answer is option B.
Characters transmitted from parents to offspring are present in
DNA is the heridity material and genes which are located on chromosomes are made up of DNA.
A pair of duct arising from testis, which carry sperms are
Traits transmitted from parents to offspring during reproduction show
Offspring exhibit similarities as well as variation from parents.
Where does fertilisation take place?
The ability of a cell to divide into several cells during reproduction in Plasmodium is called
Reduction division occurs during meiosis. Budding is seen in yeast and hydra while amoeba reproduces asexually by binary fission.
What marks the beginning of the reproductive life of a woman?
A feature of reproduction that is common to Malarial parasite, Spirogyra and Yeast is that
In all of them asexual reproduction takes place e.g., in spirogyra fragmentation, malarial parasite multiple fission and in yeast by budding.
When the foetus is growing inside the uterus it needs nutrients. Which part provides these nutrients?
The number of chromosomes in parents and offsprings of a particular species remains constant due to
Gametes have half the number of chromosome (n) as they are formed by meiosis. After syngamy the (2n) diploidy is restored in zygote.
In case the ova does not fertilise, which of the following events will take place?
Length of pollen tube depends on the distance between
Pollen tube passes from surface of stigma to the lowest part of pistil the ovary where ovules are located.
When a sperm is deposited into the vagina which route does it travel?
Which of the following statements are true for flowers ?
(i) They are the sexual reproductive organs,
(ii) They are produced in all groups of plants.
(iii) Flowers are always bisexual.
(iv) After fertilisation they give rise to fruits
Flowers are not found in lower plants. Plant like papaya have unisexual flowers.
The ability to reproduce is lost in a female after
Which of the following statements is not correct about reproduction ?
Some animals like hydra reproduce by asexual means. Reproduction is not necessary to maintain life.
Which of the following is a primary sex organ in a mammal?
The organs that produce the gametes are referred to as the primary sex organs. These are the gonalds, the testicles in the male and the ovaries in the female.
Leishmania reproduce asexually by
Amoeba reproduces by binary fission in any plane.
The fertilisation of human egg by the sperm takes place in