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Plasmodium is a homogametic organism.

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Important Questions on Locomotion and Reproduction

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Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa
In which among the following animals are arranged in ascending order of a haploid set of chromosome numbers in their gametes?
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Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa
Choose the correct statements related to binary fission of Paramecium?
(i) During favourable conditions Paramecium stops feeding after attaining its maximum growth.
(ii) At first the micronucleus divides by amitosis and the macronucleus divides into two daughter nuclei by mitosis.
(iii) The proter receives the anterior contractile vacuole, cytopharynx and cytostome from its parent individuals.
(iv) Before karyokinesis a transverse constriction appears in the middle of the body.
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Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa

Match the following columns for organisms and meiocytes and choose the correct option.

Column - I
(Name of the Organism)		 Column - II
(Meiocytes)
(P) Housefly (i) 12
(Q) Fruit fly (ii) 42
(R) Butterfly (iii) 08
(S) Rat (iv) 360
EASY
Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa
How many chromosomes are present in meiocytes of a fruit fly?
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Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa
Choose the correct statements from the following:
A) Meiosis has to occur if a diploid body has to produce gametes
B) In Cladophora it is not possible to categorise the male and female gametes
C) Organisms exhibiting external fertilization show greater synchrony between sexes
D) In Wolffia isogametes can be seen
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Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa

Match the following:

  List - I   List - II
A) Isogamy I) Vorticella
B) Anisogamy II) Plasmodium
C) Hologamy III) Monocystis
D) Conjugation IV) Amoeba
    V) Trichonympha

The correct match is

HARD
Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa
How is the chromosomal number maintained in sexually reproducing organisms?
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Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa
Which one of the following shows isogamy with non-flagellated gametes?
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Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa
Which of the following is an incorrect combination of organism with its chromosome number in meiocyte and in gamete?
  Name of organism Chromosome number in meiocyte Chromosome number in gamete
(a) Onion 24 12
(b) Ophioglossum 1260 630
(c) Human beings 46 23
(d) Fruit fly 8 4
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Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa

Find out the wrong pair with respect to the number of chromosomes in meiocytes.

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Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa

Which of the following is a unisexual organism?

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Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa
Staminate flowers produce:
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Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa

Which of the following is correct?

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Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa
A diploid parent plant body produces _____ gametes and a haploid parent plant body produces _____ gametes.
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Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa
The male gametes of rice plant have 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote and the cells of the seedling will be, respectively
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Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa
If a butterfly has chromosome number 360 in its meiocyte (2n). What will be the chromosome number in its gametes?
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Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa
What is a bisexual flower? Collect five bisexual flowers from your neighborhood and with the help of your teacher find out their common and scientific names.
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Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa
A multicellular, filamentous alga exhibits a type of sexual life cycle in which the meiotic division occurs after the formation of zygote. The adult filament of this alga has
EASY
Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa
In which of the following phases all organisms have to pass through it before they can reproduce sexually?
EASY
Biology>Diversity in the Living World>Locomotion and Reproduction>Asexual Reproduction in Protozoa

Haploid organism forms its gametes by ______