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Biology (Mixed)

Description: How do organisms reproduce, heredity and evolution
Number of Questions: 15
Created by:
Tags: Reproduction Heredity Evolution Sexual Reproduction in Flowering Plants, Pollination, Post Fertilization Changes, Germination The Female Reproductive System Reproductive Health and Methods of Contraception Onset of Puberty in Females Morphological and Anatomial Evidence of Evolution, Homologous, Analogous and Vestigial Organs Genetic Drift Rules for the Inheritance of Traits, Expression of Traits Asexual Reproduction, Fission, Budding, Spore Formation, Regeneration Acquired and Inherited Traits Change in State and Effect of Temperature and Pressure
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Which of the following two parts of plants compose the androecium?

  1. Petals and sepals

  2. Stamens and anthers

  3. Ovary and stigma

  4. Anthers and stigma

  5. Petals and ovary

Show answer
Correct Option: B
Explanation:

Yes, it is correct. Stamens and anthers are present in the androecium. Anthers produce pollen grains, the male gamete.

Fertilization takes place in which part of the female body?

  1. Ovary

  2. Vagina

  3. Fallopian tube

  4. Uterus

  5. Vas deferens

Show answer
Correct Option: C
Explanation:

Yes, fertilization takes place in the fallopian tube of a female.

Which of the following is the odd one out?

Calyx, androecium, embryo, gynoecium, corolla.

  1. Calyx

  2. Androecium

  3. Embryo

  4. Gynoecium

  5. Corolla

Show answer
Correct Option: C
Explanation:

Yes, an embryo is the odd one out. All others are types of whorls present in a flower.

In a female body, the egg which is not fertilized is ______.

  1. mixed in blood

  2. disposed off as menstrual blood

  3. decomposed inside the uterus

  4. changed into a cell

  5. added on to the uterine wall

Show answer
Correct Option: B
Explanation:

Yes, when the egg is not fertilized, it gets disintegrated and is disposed off in the form of bleeding through the vagina.

Which of the following whorls is the most colourful, so that insects and birds can be attracted; to assist the flower in pollination?

  1. First whorl

  2. Second whorl

  3. Third whorl

  4. Fourth whorl

  5. Fifth whorl

Show answer
Correct Option: B
Explanation:

Yes, the second whorl of the flower is called corolla. It is composed of colourful leaf-like structures; called petals

Copper T is placed In which part of the reproductive system?

  1. Vagina

  2. Uterus

  3. Ovary

  4. Fallopian tube

  5. It is taken orally

Show answer
Correct Option: B
Explanation:

Yes, it is the correct answer. Uterus is the part in the female reproductive system, where Copper T is placed.

Which of the following is not a secondary sexual character in a female body?

  1. Broadening of hips

  2. Enlargement of breasts

  3. Growth of pubic hair

  4. Heavier skull structure

  5. Development of thigh muscle

Show answer
Correct Option: D
Explanation:

Yes, it is the correct answer. Secondary sex characteristics distinguishes the two sexes of a species, females do not show heavier skull structure. Hence, this is the odd one out.

__________ occurs due to change in gene frequency, due to accumulation of a particular type of gene.

  1. Natural selection

  2. Genetic drift

  3. Geographical isolation

  4. Migration

  5. Reproduction isolation

Show answer
Correct Option: B
Explanation:

Yes, it occurs due to change in gene frequency due to accumulation of a particular trait.

Regeneration is carried out by specialized cells. A piece of the body develops into a new individual. In which of the following organisms, it can be seen?

  1. Leishmania

  2. Plasmodium

  3. Planaria

  4. Amoeba

  5. All of these

Show answer
Correct Option: C
Explanation:

Yes, planaria shows the process of regeneration.

Which of the following is / are the examples of homologous organs?

  1. Forelimb of human and whale

  2. Heart of human and turtle

  3. Wings of an insect and bat

  4. Both 1 and 2

  5. Both 2 and 3

Show answer
Correct Option: D
Explanation:

Yes, it is the correct answer. Both are correct.

In Rhizopus, the cytoplasm in the sporangium divides repeatedly to produce a mass of ________, each with a nucleus.

  1. buds

  2. cells

  3. spores

  4. daughter cell

  5. zygote

Show answer
Correct Option: C
Explanation:

Yes, cytoplasm in the sporangium divides repeatedly to produce a mass of spores, each with a nucleus.

Mendel took pea plants with contrast characters tall and short plant. 1) In F1 generation he got __________plants. 2) In F2 generation he got ______.

  1. 1) all short plants 2) tall plant : short plant = 3 : 1

  2. 1) all tall plants 2) tall plant : short plant = 3 : 1

  3. 1) all short plants 2) short plant : tall plant = 3 : 1

  4. 1) all short plants 2) tall plant : short plant = 1 : 3

  5. 1) all tall plants 2) tall plant : short plant = 1 : 3

Show answer
Correct Option: B
Explanation:

Yes, it is correct. In F1 generation he got all tall plants and in F2 generation he got tall plant : short plant = 3 : 1.

Which of the following is an acquired trait?

  1. Long nose

  2. Fair complexion

  3. Strong muscles

  4. Broad lips

  5. Small hands

Show answer
Correct Option: C
Explanation:

Yes, it is correct. It is not an inherited trait. It is an acquired trait.

Repeated cell division at a specific site gives rise to a ________.

  1. bud

  2. leaf

  3. tiny individual

  4. spore

  5. none of these

Show answer
Correct Option: A
Explanation:

Yes, bud develops as an outgrowth due to repeated cell division at a specific site.

Match the following correctly ||||| |---|---|---|---| |1|Tuber|a|Turmeric| |2|Leaf|b|Rose| |3|Rhizome|c|Potato| |4|Stem cutting|d|Bryophyllum|

  1. 1 - c, 2 - d, 3 - a, 4 - b

  2. 1 - a, 2 - d, 3 - c, 4 - b

  3. 1 - c, 2 - b, 3 - a, 4 - d

  4. 1 - b, 2 - a 3 - c, 4 - d

  5. 1 - d, 2 - a, 3 - b, 4 - c

Show answer
Correct Option: A
Explanation:

Yes, it is correctly matched. 

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