416 + Interview Questions in REPRODUCTION IN GENERAL AWARENESS Page 1 InterviewSolution

1.	Given below is an incomplete flow chart showing influence of hormones on gametogenesis in males. Observe the flow chart carefully and fill in the blanks A,B,C and D.
Answer» A.Androgen/Testosterone/male hormone , B.Spermatogenesis , C.Sertoli Cells , D.Spermiogenesis

Discussion

2.	Vasectomy means A) Cutting and tying of sperm ducts B) Cutting and tying of fallopian tubes C) FoeticideD) Prevention of sexual diseases
Answer» A) Cutting and tying of sperm ducts

Discussion

3.	In the table given below , select and enter one correct device out of the following : Oral pill, condom , Copper T , Saheli,Vasectomy, Diaphragm, Tubectomy, Cervical cap
Answer» (a)Barrier=Diaphragm/condom/cervical cap (b)IUD=Copper T (c )Surgical technique=Vasectomy/Tubectomy (d)Hormonal administration = Oral pills/saheli

Discussion

4.	Both vasectomy and tubectomy ensure that ____ will not take place.
Answer» fertilization

Discussion

5.	What is Vasectomy?
Answer» In males, a small portion of vas deferens is removed by surgical operation ami both ends are tied properly. This method is called vasectomy.

Discussion

6.	The menstrual cycle prepares the uterus for a fertilised egg. How long is an average menstrual cycle from start to finish?
Answer» 1. The cycle of changes that occur in the female reproductive system is called menstrual cycle. 2. The average menstrual cycle from start to finish is 28 days long.

6.

The menstrual cycle prepares the uterus for a fertilised egg. How long is an average menstrual cycle from start to finish?

Answer»

1. The cycle of changes that occur in the female reproductive system is called menstrual cycle.

2. The average menstrual cycle from start to finish is 28 days long.

Discussion

7.	The___ prepares itself every month to receive and nurture the growing child .
Answer» Correct Answer - uterus

Discussion

8.	Nucellar polyembryony is reported in species ofA. CitrusB. GossypiumC. TriticumD. Brassica
Answer» Correct Answer - 1

Discussion

9.	Persistent endosperm in mature seed is found in :A. PeaB. GramC. GroundnutD. Wheat
Answer» Correct Answer - 4

Discussion

10.	Which of the following is monoeciousA. PapayaB. Date palmC. VallisneriaD. Cucurbita
Answer» Correct Answer - 4

Discussion

11.	Bottle gourd, Papaya have the ………. flowers. A) unisexual B) bisexual C) cyclic D) ray
Answer» (A) unisexual

Discussion

12.	Which type of pollination is quite rare in flowering plants ?A. WindB. InsectC. WaterD. Animal
Answer» Correct Answer - 3

Discussion

13.	Identify the unisexual flowers. A) Bottle gourd B) Papaya C) Both A & B D) None
Answer» (C) Both A & B

Discussion

14.	Read the paragraph given below and answer. Most of the plants are flowering plants. Their characters are quite remarkable. A sal tree grows in Himalayan mountains, a giant cactus in the Sahara desert. Flowering plants possess A) Bisexual flowers B) Unisexual flowers C) A or B D) Only Heterozygous flowers
Answer» (B) Unisexual flowers

Discussion

15.	How many times flowering takes place in biennial plants :-A. OnceB. TwiceC. ManyD. Three
Answer» Correct Answer - 1

Discussion

16.	When the ovule is curved and embryo sac becomes horse shoe shaped, such an ovule is calledA. CircinotropousB. AnatropousC. AmphitropousD. Atropous
Answer» Correct Answer - 3

Discussion

17.	What does ahgiosperm mean :-A. Nake seedB. Covered seedC. Leaf fallD. Seed bud
Answer» Correct Answer - 2

Discussion

18.	At which temperature, germination of seed can not possible in most of the plants :-A. `10^@-15^@ C`B. `5^@- 10 ^@`C. `0^@- 5^@C`D. `20^@- 25^@ C`
Answer» Correct Answer - 3

Discussion

19.	What is the need of sprinkling water on ground nut germinating seeds in order to observe the phenomenon of seed germination ? A) To keep the seeds wet in condition B) To enhance dormancy C) To destroy germination D) To bring out leaves
Answer» A) To keep the seeds wet in condition Most seeds need to take up water to germinate; this is known as imbibition GLOSSARY imbibitionthe taking up of liquid, causing swelling. . Water: hydrates enzymes in the seed, activating them. As a result the seed begins to release energy from its food store for growth. A correct

19.

What is the need of sprinkling water on ground nut germinating seeds in order to observe the phenomenon of seed germination ? A) To keep the seeds wet in condition B) To enhance dormancy C) To destroy germination D) To bring out leaves

Answer»

A) To keep the seeds wet in condition

Most seeds need to take up water to germinate; this is known as imbibition GLOSSARY imbibitionthe taking up of liquid, causing swelling. . Water: hydrates enzymes in the seed, activating them. As a result the seed begins to release energy from its food store for growth.

A correct

Discussion

20.	In which part of embryo maximum growth takes place in hypogeal germination :-A. PlumuleB. RadicleC. EpicotylD. Hypocotyl
Answer» Correct Answer - 3

Discussion

21.	The conditions required for germination of seeds are A) moist B) temperature C) light D) All of the above
Answer» D) All of the above

Discussion

22.	Stock and scion are attached. Which type of characters will come in the offspring? A) Characters of stock B) Characters of scion C) Special desired characters D) Can’t say
Answer» (C) Special desired characters

Discussion

23.	The most useful reproductive process in the development of ornamental and horticulture field. A) Binary fission B) Budding C) Vegetative propagation D) Multiple fission
Answer» C) Vegetative propagation

Discussion

24.	The turkey usually produces female for several generations. How is this possible ?
Answer» In a turkey , female gametes undergo development without fertilization. This phenomenon is called parthenogenesis

Discussion

25.	Why are non-albuminous (exalbuminous) seeds so called ?
Answer» The seeds in which the endosperm is used up during embryo development are called exalbuminous seeds such as bean , pea and gram. These seeds usually store food materials in cotyledons.

Discussion

26.	Which one of the following seeds does not have endosperm ? A) Maize B) RiceC) Wheat D) Red gram
Answer» (D) Red gram

Discussion

27.	Give reasons why: (i) Most zygotes in angiosperms divide only after certain amount of endosperm is formed. (ii) Groundnut seeds are exalbuminous and castor seeds are albuminous. (iii) Micropyle remains as a small pore in the seed coat of a seed. (iv) Integuments of an ovule harden and the water content is highly reduced, as the seed matures. (v) Apple and cashew are not called true fruits.
Answer» (i)Formation of angiosperms ensures supply of nutrients to the embryo. (ii) In groundnut food is stored in cotyledon and seeds have no residual endosperm as R is completely used up during embryo development. The castor seeds retain part of endosperm as it is not completely used up during embryo development. (iii)This facilitates entry of oxygen and water during seed germination (iv) The seed coat hardens and moisture content of seeds is reduced considerably to enable the seed to remain viable for a long time during storage (v) Because in these fruits, the thalamus also contributes to fruit formation

Discussion

28.	Fill in the blanks:1. Teenage ______should be avoided2. Girls below ____years of age should not be married.3. The male and female child sex ratio is declining due to female _____.4. Determination of sex before birth is ____.
Answer» 1. Teenage motherhood should be avoided 2. Girls below 18 years of age should not be married. 3. The male and female child sex ratio is declining due to female foeticide. 4. Determination of sex before birth is illegal.

28.

Fill in the blanks:1. Teenage ____should be avoided2. Girls below years of age should not be married.3. The male and female child sex ratio is declining due to female _.4. Determination of sex before birth is __.

Answer»

1. Teenage motherhood should be avoided

2. Girls below 18 years of age should not be married.

3. The male and female child sex ratio is declining due to female foeticide.

4. Determination of sex before birth is illegal.

Discussion

29.	Perisperm differs from endosperm inA. Its formation by fusion of secondary nucelus with servel spermsB. Being a haploid tissueC. Having no reserve foodD. Being a dipoid tissue
Answer» Correct Answer - 4

Discussion

30.	Choose the number of diploid structures in the list given below :- Pollen grains, nucellus, perisperm, endosperm, embryosac, megasporeA. TwoB. ThreeC. FourD. One
Answer» Correct Answer - 1

Discussion

31.	Adventive embryony in Citrus is due toA. NucellusB. lntegumentsC. Zygotic embryoD. Fertilized egg
Answer» Correct Answer - 1

Discussion

32.

Difference between:Grafting – Layering

Answer»

Grafting	Layering
1. Grafting is a technique of inserting a part of one plant into another plant in such a way that the two will unite and continue their growth.	1. Stems that form roots while still attached to the parent plants are called layers. Propagating the plants in this method is known as layering.
2. Two plants of the same species are required for grafting.	2. Only one plant is required for layering.
3. Grafting helps to pressure and perpetuate varieties that cannot reproduce by vegetative method.	3. In layering we can propagate the plant varieties which are required by us.
4. Grafting is used to obtain a plant with desirable characters.	4. In layering the plant already has desirable characters is propagated.
5. The two plants stock and scion and joined together in such a way that two stems join and grow as a single plant.	5. The common practice in layering is to injure the portion to be layered by notching, cutting, girdling.
6. Ex: Mango, apple, guava, etc.	6. Ex: Jasmine, rose, grapevine, etc.

Grafting: In this method, the cut stem of two different plants ( one with root and other without root) are joined together in such a way that the two stems join and grow as a single plant.

Examples: Apple,apricots,peach,pear

Layering: A branch of plant is pulled towards the ground and a part of it is covered with moist soil leaving the tip of branch exposed above the ground. After some time new root developes from the part of branch buried in the soil. The branch is then cut off from the parent plant.

Examples: Jasmine, lemon, guava, strawberry.

Discussion

33.	Helobial endosperm is restricted usually toA. GymnospermB. DicotyledonsC. Order helobialesD. Both 2&3
Answer» Correct Answer - 3

Discussion

34.	Mention the reasons for difference in ploidy of zygote and primary endosperm nucleus in an angiosperm.
Answer» Zygote is formed due to fusion of two haploid (n) gametes, hence it is diploid (2n). Endosperm develops from triploid (3n) primary endosperm nucleus formed due to fusion of male gamete (n) and two polar nuclei (n)

Discussion

35.	A moss plant produces a large number of antherozoids but relatively only a few egg cells. Why ?
Answer» In moss the eggs are located in the archgonium. For fertilising them, antherozoids swim in water to reach the eggs. Their production in large number increases the chances of fertilisation

Discussion

36.	Identify which membrane forms the umbilical cord. A) Chorion B) Allantois C) Amnion D) Placenta
Answer» Answer is (A) Chorion

Discussion

37.	Which membrane forms umbilical cord?
Answer» Allantois membrane which originates from the digestive canal of the embryo forms the major part of tube like structure called umbilical cord.

Discussion

38.	What is umbilical cord ?
Answer» The tube that connects the embryo and the placementa is the umbilical cord.

Discussion

39.	What does umbilical cord?
Answer» Umbilical cord: It is a tube-like structure formed by the allantois membrane of the embryo. It connects the embryo with the placenta.

Discussion

40.	In Angiosperms pollen tube liberate their male gametes into the :A. Central cellB. Antipodal cellsC. Egg cellD. Synergid
Answer» Correct Answer - 4

Discussion

41.	Male gametophyte in angiosperms produces:A. Three spermsB. Two sperms and a vegetative cellC. Single sperm and a vegetative cellD. Single sperm and two vegetative cells
Answer» Correct Answer - 2

Discussion

42.	Most reduced sized gametophyte is ofA. BryophyteB. PteridophyteC. GymnospermD. Angiosperm
Answer» Correct Answer - 4

Discussion

43.	The fertilisation which occurs outside the body is A) External fertilisation B) Internal fertilisation C) Tissue culture D) Oviparous
Answer» (A) External fertilisation

Discussion

44.	How cross fertilisation occurs?
Answer» If the male cells of flower of a plant fertilise the female cells of flowers on the same or different plants of the same species, the type of pollination is called cross pollination.

Discussion

45.	What did Darwin showed regarding fertilization of plants?
Answer» Darwin in 1876 showed that plants when isolated had the greatest tendency to self fertilize while when surrounded by varieties of the same flower, they readily cross fertilize.

Discussion

46.	Which cells are composed the embryosac of ovule?
Answer» The embryosac of ovule composed of gametophyte cells.

Discussion

47.	The haploid cell which divides by mitosis to form embryosac isA. Megaspore mother cellB. Microspore mothet cellC. Functional MegasporeD. Non functional megaspore
Answer» Correct Answer - 3

Discussion

48.	All the nuclei in polygonum type of embryosac areA. HaploidB. DiploidC. Haploid and diploidD. Haploid and polyploid
Answer» Correct Answer - 3

Discussion

49.	What is pollen grainA. Microspone mother cellB. Male gameteC. Male gametophyteD. Partially developed embryo
Answer» Correct Answer - 3

Discussion

50.	Embryosac is represented byA. MegagametophyteB. MegasporophyllC. MicrogametesD. Megaspore
Answer» Correct Answer - 1

Discussion

Explore topic-wise InterviewSolutions in .

Given below is an incomplete flow chart showing influence of hormones on gametogenesis in males. Observe the flow chart carefully and fill in the blanks A,B,C and D.

Vasectomy means A) Cutting and tying of sperm ducts B) Cutting and tying of fallopian tubes C) FoeticideD) Prevention of sexual diseases

In the table given below , select and enter one correct device out of the following : Oral pill, condom , Copper T , Saheli,Vasectomy, Diaphragm, Tubectomy, Cervical cap

Both vasectomy and tubectomy ensure that ____ will not take place.

What is Vasectomy?

The menstrual cycle prepares the uterus for a fertilised egg. How long is an average menstrual cycle from start to finish?

The___ prepares itself every month to receive and nurture the growing child .

Nucellar polyembryony is reported in species ofA. CitrusB. GossypiumC. TriticumD. Brassica

Persistent endosperm in mature seed is found in :A. PeaB. GramC. GroundnutD. Wheat

Which of the following is monoeciousA. PapayaB. Date palmC. VallisneriaD. Cucurbita

Bottle gourd, Papaya have the ………. flowers. A) unisexual B) bisexual C) cyclic D) ray

Which type of pollination is quite rare in flowering plants ?A. WindB. InsectC. WaterD. Animal

Identify the unisexual flowers. A) Bottle gourd B) Papaya C) Both A &amp; B D) None

How many times flowering takes place in biennial plants :-A. OnceB. TwiceC. ManyD. Three

When the ovule is curved and embryo sac becomes horse shoe shaped, such an ovule is calledA. CircinotropousB. AnatropousC. AmphitropousD. Atropous

What does ahgiosperm mean :-A. Nake seedB. Covered seedC. Leaf fallD. Seed bud

At which temperature, germination of seed can not possible in most of the plants :-A. `10^@-15^@ C`B. `5^@- 10 ^@`C. `0^@- 5^@C`D. `20^@- 25^@ C`

What is the need of sprinkling water on ground nut germinating seeds in order to observe the phenomenon of seed germination ? A) To keep the seeds wet in condition B) To enhance dormancy C) To destroy germination D) To bring out leaves

In which part of embryo maximum growth takes place in hypogeal germination :-A. PlumuleB. RadicleC. EpicotylD. Hypocotyl

The conditions required for germination of seeds are A) moist B) temperature C) light D) All of the above

Stock and scion are attached. Which type of characters will come in the offspring? A) Characters of stock B) Characters of scion C) Special desired characters D) Can’t say

The most useful reproductive process in the development of ornamental and horticulture field. A) Binary fission B) Budding C) Vegetative propagation D) Multiple fission

The turkey usually produces female for several generations. How is this possible ?

Why are non-albuminous (exalbuminous) seeds so called ?

Which one of the following seeds does not have endosperm ? A) Maize B) RiceC) Wheat D) Red gram

Fill in the blanks:1. Teenage ______should be avoided2. Girls below ____years of age should not be married.3. The male and female child sex ratio is declining due to female _____.4. Determination of sex before birth is ____.

Perisperm differs from endosperm inA. Its formation by fusion of secondary nucelus with servel spermsB. Being a haploid tissueC. Having no reserve foodD. Being a dipoid tissue

Choose the number of diploid structures in the list given below :- Pollen grains, nucellus, perisperm, endosperm, embryosac, megasporeA. TwoB. ThreeC. FourD. One

Adventive embryony in Citrus is due toA. NucellusB. lntegumentsC. Zygotic embryoD. Fertilized egg

Difference between:Grafting – Layering

Helobial endosperm is restricted usually toA. GymnospermB. DicotyledonsC. Order helobialesD. Both 2&3

Mention the reasons for difference in ploidy of zygote and primary endosperm nucleus in an angiosperm.

A moss plant produces a large number of antherozoids but relatively only a few egg cells. Why ?

Identify which membrane forms the umbilical cord. A) Chorion B) Allantois C) Amnion D) Placenta

Which membrane forms umbilical cord?

What is umbilical cord ?

What does umbilical cord?

In Angiosperms pollen tube liberate their male gametes into the :A. Central cellB. Antipodal cellsC. Egg cellD. Synergid

Male gametophyte in angiosperms produces:A. Three spermsB. Two sperms and a vegetative cellC. Single sperm and a vegetative cellD. Single sperm and two vegetative cells

Most reduced sized gametophyte is ofA. BryophyteB. PteridophyteC. GymnospermD. Angiosperm

The fertilisation which occurs outside the body is A) External fertilisation B) Internal fertilisation C) Tissue culture D) Oviparous

How cross fertilisation occurs?

What did Darwin showed regarding fertilization of plants?

Which cells are composed the embryosac of ovule?

The haploid cell which divides by mitosis to form embryosac isA. Megaspore mother cellB. Microspore mothet cellC. Functional MegasporeD. Non functional megaspore

All the nuclei in polygonum type of embryosac areA. HaploidB. DiploidC. Haploid and diploidD. Haploid and polyploid

What is pollen grainA. Microspone mother cellB. Male gameteC. Male gametophyteD. Partially developed embryo

Embryosac is represented byA. MegagametophyteB. MegasporophyllC. MicrogametesD. Megaspore

Identify the unisexual flowers. A) Bottle gourd B) Papaya C) Both A & B D) None

Fill in the blanks:1. Teenage ____should be avoided2. Girls below years of age should not be married.3. The male and female child sex ratio is declining due to female _.4. Determination of sex before birth is __.