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Reproduction in Organisms MCQs | Reproduction in Organisms Objective Type Questions and Answers

Questions
1 The number of chromosomes in both parents and offsprings of a particular species remains constant because:
A Chromosomes get doubled after zygote formation
B Chromosomes get doubled after gamete formation
C Chromosomes get halved during gamete formation
D Chromosomes get halved after gamete formation

Answer:Chromosomes get halved during gamete formation
2 The figure given alongside shows the human male reproductive organs. Which structures make sperms and seminal fluid?
A V makes sperms and X makes seminal fluid
B W makes sperms and Y makes seminal fluid
C X makes sperms and W makes seminal fluid
D Y makes sperms and V makes seminal fluid

Answer:Y makes sperms and V makes seminal fluid
3 An organism capable of reproducing by two asexual reproduction methods one similar to the reproduction in yeast and the other similar to the reproduction in Planaria is:
A Spirogyra
B Hydra
C Bryophyllum
D Paramecium

Answer: Hydra
4 Among the following select the statements that are true regarding the sexual reproduction in flowering plants?
(i) Fertilisation is a compulsory event
(ii) It always results in the formation of zygote
(iii) Offsprings formed are clones
(iv) It requires two types of gametes
A (i) nad (iv)
B (i), (ii) and (iii)
C (i), (ii) and (iv)
D (ii), (iii) and (iv)

Answer:(i), (ii) and (iv)
5 Which among the following are not the functions of testes at puberty?
(i) Formation of germ cells
(ii) Secretion of testosterone
(iii) Development of placenta
(iv) Secretion of estrogen
A (i) and (ii)
B (i) and (iii)
C (ii) and (iv)
D (iii) and (iv)

Answer: (iii) and (iv)
6 Which out of the following processes does not lead to the formation of clones:
A Fertilisation
B Fission
C Tissue culture
D Fragmentation

Answer:Fertilisation
7 The ratio of number of chromosomes in a human zygote and a human sperm is:
A 2 : 1
B 3 : 1
C 1 : 2
D 1 : 3

Answer:2 : 1
8 In which of the following mammal estrous cycle is absent:
A cow
B horse
C monkey
D rabbit

Answer:monkey
9 Identify the incorrect statement.
A In asexual reproduction, the offspring produced are morphologically and genetically identical to the parent
B Zoospores are sexual reproductive structures
C In asexual reproduction, a single parent produces offspring with or without the formation of gametes
D Conidia are asexual structures in Penicillium

Answer: Zoospores are sexual reproductive structures
10 Asexual reproductive structure of sponge:
A gemmules
B conidia
C bulb
D none of these

Answer: Gemmules
11 Which of the following is developed by parthenogenesis:
A Drones
B queen honey bee
C worker honey bee
D both b and c

Answer: Drones
12 Which of the following is formed immediately after fertilization
A morula
B blastula
C zygote
D foetus

Answer: zygote
13 The process which results the formation of zygote
A Isogamy
B Anisogamy
C Triple fusion
D Syngamy

Answer: Syngamy
14 Which of the following is not an asexual reproductive structure?
A zoospores
B pollen
C buds
D conidia

Answer: pollen
15 Parthenogenesis is the development of an organism directly from:
A Female gametes
B Vegetative cells
C Fertilized ovum
D None of these

Answer:Female gametes
16 Parthenogenesis is the development of an organism directly from:
A Female gametes
B Vegetative cells
C Fertilized ovum
D None of these

Answer: Female gametes
17 Which of the following organism reproduces by multiple fission?
A Euglena
B Paramecium
C Trypanosoma
D Plasmodium

Answer:Plasmodium
18 Which type of stem modification is seen in banana?
A stem tuber
B bulb
C corn
D rhizome

Answer: rhizome
19 Which animals have developed capacity of regeneration ?
A Hydra, Starfish
B Plasmodium
C Leech
D Paramoecium

Answer: Hydra, Starfish
20 Sporulation occurs in...........
A Plasmodium
B Hydra
C Starfish
D Spongilla

Answer: Plasmodium

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