416 + Interview Questions in REPRODUCTION IN GENERAL AWARENESS Page 6 InterviewSolution

251.	What is the meaning of gestation period ?
Answer» The time from fertilization to birth , i.e, the total period of embryonic development, is gestation period.

Discussion

252.	What is the gestation period in human beings?
Answer» The gestation period in human beings is 9 months or 280 days.

Discussion

253.

Collect the information about gestation periods in different animals.

Answer»

Gestation period in different animals:

Animal	Gestation period
Cat and dog	63 days
Horse	330 days
Cow	280 days
Rat and mouse	20-22 days

Discussion

254.	All reproductive tract infections RTIs are STDs, but all STDs but all STDs are not RTIs. Justify with example
Answer» Among the common STDs-gonorrhea, syphilis , genital herpes, chlamydiasis , hepatitis-B,AIDS etc., hepatitis-B, and AIDS are not infections of the reproductive organs though their mode of transmission could be through sexual contact also. All other diseases are transmitted through sexual contact and are also infections of the reproductive tract.

Discussion

255.	Which of the following is found in men ?A. vas deferensB. fallopian tubeC. ovumD. placenta
Answer» Correct Answer - A

Discussion

256.	The ovary releases an egg approximately everyA. 8 daysB. 14 daysC. 21 daysD. 28 days
Answer» Correct Answer - D

Discussion

257.	Pollen tube bears A) one male, one female nuclei B) 2 male nuclei C) 2 female nuclei D) 2 male, 2 female nuclei
Answer» (B) 2 male nuclei

Discussion

258.	The plant in which GB. Amici discovered pollen tube is:-A. CapsellaB. PartheniumC. PortulacaD. Pisum
Answer» Correct Answer - 3

Discussion

259.	In ants king ant along with queen ant and labour ants exist in numerous numbers 1) These are formed by division of ovule 2) Parthenogenesis is the reason Choose the correct statement. A) 1 only B) 2 only C) Both are correct D) Both are wrong
Answer» Answer is (B) 2 only

Discussion

260.	List A List B1. Fragmentationa) Fungi2. Buddingb) Paramoecium3. Binary fissionc) FlatwormIdentify the mis – matched pairs A) 1, 2 B) 2, 3 C) 1, 3 D) 1, 2, 3
Answer» Answer is (B) 2, 3

Discussion

261.	The arrangement of the nuclei in a normal embryo sac in the dicot plants isA. 2+4+2B. 3+2+3C. 2+3+3D. 3+3+2
Answer» Correct Answer - 2

Discussion

262.	Monothecous condtion of stamens, i.e,. Presence of a signle anther lobe is characterstic of familyA. MalvaceaeB. LiliaceaeC. BrassicaceaeD. Asteraceae
Answer» Correct Answer - 1

Discussion

263.	An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle isA. CampylotropousB. AnatropousC. OrthotropousD. Hemitropou
Answer» Correct Answer - 1

Discussion

264.	Anthesis is a phenomenon which refers to:A. Formation of pollenB. Development of antherC. Opening of flower budD. Reception of pollen by stigma
Answer» Correct Answer - 3

Discussion

265.	Advantage of cleistogamy isA. ViviparyB. Higher genetic variabalityC. More vigorous offspringD. No dependence on pollinators
Answer» Correct Answer - 4

Discussion

266.	Cleistogamy does not require anthesis becauseA. Pollinators are not requiredB. It assures heterozygosityC. Favours insect pollinationD. It allows xenogamy
Answer» Correct Answer - 1

Discussion

267.	In which structure we can find Graffian follicles? A) Fallopian tubeB) Corpus leutium C) Ovule D) Ovary
Answer» Answer is (D) Ovary

Discussion

268.	Which of the following is the correct sequence of stages in the cell cycle? A) S → M → G1 → G2 B) M → S → G1→ G2 C) G1 → G2 → S → M D) G1 → S → G2 → M
Answer» (D) G₁ → S → G₂ → M

Discussion

269.	Which of the following is the correct sequence of steps in the human life cycle? Choose the right option.A) Babyhood, childhood, adolescence, adulthood B) Childhood, babyhood, adulthood, adolescence C) Adolescence, babyhood, adulthood, childhood D) None of the above
Answer» Correct option is A) Babyhood, childhood, adolescence, adulthood

Discussion

270.	Which of these things will affect the way a foetus grows ? A) Chemicals in cigarette smoke B) Alcohol C) Drugs D) All of the above
Answer» (D) All of the above

Discussion

271.	Which of the following is the correct sequence of steps in the human life cycle ? A) Babyhood, childhood, adolescence, adulthood B) Childhood, babyhood, adulthood, adolescence C) Adolescence, babyhood, adulthood, childhood D) None of these
Answer» B) Childhood, babyhood, adulthood, adolescence

Discussion

272.	The 3 months of embryo is called ………A) New born child B) Foetus C) Baby D) Nucleoid
Answer» The 3 months of embryo is called Foetus

Discussion

273.	The tube which, connects the embryo with placenta is A) Fallopian tube B) Seminal vesicle C) Epididymis D) Umbilical cord
Answer» (D) Umbilical cord

Discussion

274.	When do placenta is formed during the development of embryo?
Answer» Placenta is formed at around 12 weeks of pregnancy or during the embryonic development.

Discussion

275.	What keeps embryo moist and protects it from minor mechanical injury?
Answer» The embryo develop in amniotic fluid filled cavity which keeps it moist and protects it from minor mechanical injury.

Discussion

276.	When and where do chorionic villi appear in humans ? State their function.
Answer» After implantation , finger-like projections appear on the trophoblast called chorionic villi. The chorionic villi and uterine tissue become inter digitated with each other and jointly form a structural and functional unit between developing embryo (foetus) and maternal body called placenta.The placenta facilitates the supply of oxygen , antibodies , hormones and nutrients to the embryo. It also helps in the elimination of carbon dioxide and excretory wastes from foetus.

Discussion

277.	Do you feel that it is a social responsibility to control birth after having one or two children?
Answer» 1. Yes, it is a social responsibility of every individual to control birth after having one or two children. 2. If we don’t control birth after having one or two children, population will grow rapidly. 3. If the population increases we will not be able to provide all the facilities such as education, medicine, employment etc., to all the people. 4. It shows impact on the economic conditions of the family and the society. 5. The quality of life will decrease.

Discussion

278.	What do you understand by the term ‘Healthy Society’?
Answer» 1. If all the people in a society are in the state of complete physical, mental and social well being, then the society is said to be healthy society. 2. To be in a healthy society, every one in the society should take care of their own personal hygiene and cleanliness of the surroundings. 3. Avoiding child marriages, unprotected sex and creating awareness among the people regarding adverse effects of these are very essential to form a healthy society.

278.

What do you understand by the term ‘Healthy Society’?

Answer»

1. If all the people in a society are in the state of complete physical, mental and social well being, then the society is said to be healthy society.

2. To be in a healthy society, every one in the society should take care of their own personal hygiene and cleanliness of the surroundings.

3. Avoiding child marriages, unprotected sex and creating awareness among the people regarding adverse effects of these are very essential to form a healthy society.

Discussion

279.	What is common between vegetative reproduction and ApomixisA. Both produces progeny identical to the parentB. Both are applicable to only dicot plants.C. Both bypass the flowering phase.D. Both occur round the year.
Answer» Correct Answer - 1

Discussion

280.	Reproductive health refers only to healthy reproductive functions. Comment
Answer» Reproductive health refers to a total well-being in all aspects of reproduction i.e., physical, behavioural, psychological , social and physiological

Discussion

281.	Is pollination and fertilisation necessary in apomixis ? Give reason
Answer» No, they are not necessary . Apomixis is actually an alternative to sexual reproduction although the female sexual apparatus is used in the process. In apomicts , embryos can develop directly from the nucellus or synergid or egg. Therefore, there is no need for either pollination or fertilisation

Discussion

282.	At the time of fertilisation in embryo sac b the cell which is in diploid state : A) Polar nuclei B) Zygote C) Endosperm D) Intra ovular tissue
Answer» (A) Polar nuclei

Discussion

283.	Although potato tuber is an underground plant part, it is considered as a stem.Give two reason .
Answer» (a)The tuber has nodes and internodes (b)Leafy shoots appear from the nodes

Discussion

284.	Can an unfertilised , apomictic embryo sac give rise to a diploid embryo ? If yes, then how ?
Answer» yes, if the embryo develops from the cells of nucellus or integument it will be diploid

Discussion

285.	Number of nuclei taking part in double fertilization isA. TwoB. ThreeC. FourD. Five
Answer» Correct Answer - 4

Discussion

286.	In an angiospermic plant just after double fertilization , arrangement of nuclei in an ovuleA. Five haploid , One diploid , One triploidB. Three haploid , Two diploid , Two triploidC. Two haploid , Three diploid , Two triploidD. One haploid , Three diploid , Three triploid
Answer» Correct Answer - 1

Discussion

287.	In an angiosperm the embryo sac is haploid , zygote is diploid and endosperm is triploid. Justify giving reasons for each stage.
Answer» In angiosperms , the embryo sac represents the female gametophyte that derived from the megaspore mother cell through meiosis, that is why it is haploid. In angiosperms that double fertilization that includes syngamy and triple fusion causes the developement of diploid zygote and triploid endosperm. During fertilization, one of the two male gamete nuclei fuses with the egg nucleus to form the diploid zygote that later develops into the embryo while the other male gamete nuclei fuses with two secondary nuclei to form triploid endosperm nucleus that develops into the endosperm .

Discussion

288.	Transmission tissue is characteristic feature ofA. Solid styleB. Dry stigmaC. Wet stigmaD. Hollow style
Answer» Correct Answer - 1

Discussion

289.	The part of the female reproductive system produces the eggsA) Ovary B) Epididymis C) Cervix D) Fallopian tube
Answer» Correct option is A) Ovary

Discussion

290.	Name the stage at which zona pellucida envelop disintegrates
Answer» As the blastocyst is formed , the zona pellucida disintegrates

Discussion

291.	In which phase of the mitosis chromosomes split lengthwise to form chromatids?
Answer» In prophase of the mitosis chromosomes split lengthwise to form chromatids.

Discussion

292.	What are the hypothesis made by August Weiseman on chromosomes?
Answer» 1. In successive generations, individuals of the same species have the same number of chromosomes. 2. In successive cell division the number of chromosomes always remain constant.

292.

What are the hypothesis made by August Weiseman on chromosomes?

Answer»

1. In successive generations, individuals of the same species have the same number of chromosomes.

2. In successive cell division the number of chromosomes always remain constant.

Discussion

293.	Who proposed that chromosomes carried a different set of heritable elements?
Answer» Wilhelm Roux proposed that chromosomes carried a different set of heritable elements.

Discussion

294.	Which animal is having less number of chromosomes ?A) Onion B) Monkey C) Ascaris D) Rat
Answer» Answer is (C) Ascaris

Discussion

295.	Find out the correct statement a – Mitos means fine threads b – Mitosis was discovered by Walther Flemming ‘ A) Both ‘a’ & ‘b’ are true B) ‘a’ is true, ‘b’ is false C) ‘a’ is false, ‘b’ is true D) Both ‘a’ & ‘b’ are false
Answer» A) Both ‘a’ & ‘b’ are true

Discussion

296.	Entry of pollen tube through micropyle is called :A. PorogamyB. SyngamyC. ChalazogamyD. Mesogamy
Answer» Correct Answer - 1

Discussion

297.	Example of EpihydrophilyA. ZosteraB. VallisneriaC. NelumbiumD. Hydrilla
Answer» Correct Answer - 2

Discussion

298.	Even in absence of pollinating agents seed-setting is assured inA. SalivaB. FigC. CommellinaD. Zostera
Answer» Correct Answer - 3

Discussion

299.	Both, autogamy and geitonogamy are prevented inA. CastorB. MaizeC. PapayaD. Cucumber
Answer» Correct Answer - 3

Discussion

300.	Autogamy meansA. Transfer of pollen from anthers to stigma of the same flowersB. Transfer of pollen from one flowers to another on the different plantC. Occurence of male and female sex organ in the same flowersD. Germination of pollen
Answer» Correct Answer - 1

Discussion

Explore topic-wise InterviewSolutions in .

What is the meaning of gestation period ?

What is the gestation period in human beings?

Collect the information about gestation periods in different animals.

All reproductive tract infections RTIs are STDs, but all STDs but all STDs are not RTIs. Justify with example

Which of the following is found in men ?A. vas deferensB. fallopian tubeC. ovumD. placenta

The ovary releases an egg approximately everyA. 8 daysB. 14 daysC. 21 daysD. 28 days

Pollen tube bears A) one male, one female nuclei B) 2 male nuclei C) 2 female nuclei D) 2 male, 2 female nuclei

The plant in which GB. Amici discovered pollen tube is:-A. CapsellaB. PartheniumC. PortulacaD. Pisum

In ants king ant along with queen ant and labour ants exist in numerous numbers 1) These are formed by division of ovule 2) Parthenogenesis is the reason Choose the correct statement. A) 1 only B) 2 only C) Both are correct D) Both are wrong

List A List B1. Fragmentationa) Fungi2. Buddingb) Paramoecium3. Binary fissionc) FlatwormIdentify the mis – matched pairs A) 1, 2 B) 2, 3 C) 1, 3 D) 1, 2, 3

The arrangement of the nuclei in a normal embryo sac in the dicot plants isA. 2+4+2B. 3+2+3C. 2+3+3D. 3+3+2

Monothecous condtion of stamens, i.e,. Presence of a signle anther lobe is characterstic of familyA. MalvaceaeB. LiliaceaeC. BrassicaceaeD. Asteraceae

An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle isA. CampylotropousB. AnatropousC. OrthotropousD. Hemitropou

Anthesis is a phenomenon which refers to:A. Formation of pollenB. Development of antherC. Opening of flower budD. Reception of pollen by stigma

Advantage of cleistogamy isA. ViviparyB. Higher genetic variabalityC. More vigorous offspringD. No dependence on pollinators

Cleistogamy does not require anthesis becauseA. Pollinators are not requiredB. It assures heterozygosityC. Favours insect pollinationD. It allows xenogamy

In which structure we can find Graffian follicles? A) Fallopian tubeB) Corpus leutium C) Ovule D) Ovary

Which of the following is the correct sequence of stages in the cell cycle? A) S → M → G1 → G2 B) M → S → G1→ G2 C) G1 → G2 → S → M D) G1 → S → G2 → M

Which of the following is the correct sequence of steps in the human life cycle? Choose the right option.A) Babyhood, childhood, adolescence, adulthood B) Childhood, babyhood, adulthood, adolescence C) Adolescence, babyhood, adulthood, childhood D) None of the above

Which of these things will affect the way a foetus grows ? A) Chemicals in cigarette smoke B) Alcohol C) Drugs D) All of the above

Which of the following is the correct sequence of steps in the human life cycle ? A) Babyhood, childhood, adolescence, adulthood B) Childhood, babyhood, adulthood, adolescence C) Adolescence, babyhood, adulthood, childhood D) None of these

The 3 months of embryo is called ………A) New born child B) Foetus C) Baby D) Nucleoid

The tube which, connects the embryo with placenta is A) Fallopian tube B) Seminal vesicle C) Epididymis D) Umbilical cord

When do placenta is formed during the development of embryo?

What keeps embryo moist and protects it from minor mechanical injury?

When and where do chorionic villi appear in humans ? State their function.

Do you feel that it is a social responsibility to control birth after having one or two children?

What do you understand by the term ‘Healthy Society’?

What is common between vegetative reproduction and ApomixisA. Both produces progeny identical to the parentB. Both are applicable to only dicot plants.C. Both bypass the flowering phase.D. Both occur round the year.

Reproductive health refers only to healthy reproductive functions. Comment

Is pollination and fertilisation necessary in apomixis ? Give reason

At the time of fertilisation in embryo sac b the cell which is in diploid state : A) Polar nuclei B) Zygote C) Endosperm D) Intra ovular tissue

Although potato tuber is an underground plant part, it is considered as a stem.Give two reason .

Can an unfertilised , apomictic embryo sac give rise to a diploid embryo ? If yes, then how ?

Number of nuclei taking part in double fertilization isA. TwoB. ThreeC. FourD. Five

In an angiospermic plant just after double fertilization , arrangement of nuclei in an ovuleA. Five haploid , One diploid , One triploidB. Three haploid , Two diploid , Two triploidC. Two haploid , Three diploid , Two triploidD. One haploid , Three diploid , Three triploid

In an angiosperm the embryo sac is haploid , zygote is diploid and endosperm is triploid. Justify giving reasons for each stage.

Transmission tissue is characteristic feature ofA. Solid styleB. Dry stigmaC. Wet stigmaD. Hollow style

The part of the female reproductive system produces the eggsA) Ovary B) Epididymis C) Cervix D) Fallopian tube

Name the stage at which zona pellucida envelop disintegrates

In which phase of the mitosis chromosomes split lengthwise to form chromatids?

What are the hypothesis made by August Weiseman on chromosomes?

Who proposed that chromosomes carried a different set of heritable elements?

Which animal is having less number of chromosomes ?A) Onion B) Monkey C) Ascaris D) Rat

Find out the correct statement a – Mitos means fine threads b – Mitosis was discovered by Walther Flemming ‘ A) Both ‘a’ &amp; ‘b’ are true B) ‘a’ is true, ‘b’ is false C) ‘a’ is false, ‘b’ is true D) Both ‘a’ &amp; ‘b’ are false

Entry of pollen tube through micropyle is called :A. PorogamyB. SyngamyC. ChalazogamyD. Mesogamy

Example of EpihydrophilyA. ZosteraB. VallisneriaC. NelumbiumD. Hydrilla

Even in absence of pollinating agents seed-setting is assured inA. SalivaB. FigC. CommellinaD. Zostera

Both, autogamy and geitonogamy are prevented inA. CastorB. MaizeC. PapayaD. Cucumber

Autogamy meansA. Transfer of pollen from anthers to stigma of the same flowersB. Transfer of pollen from one flowers to another on the different plantC. Occurence of male and female sex organ in the same flowersD. Germination of pollen

Find out the correct statement a – Mitos means fine threads b – Mitosis was discovered by Walther Flemming ‘ A) Both ‘a’ & ‘b’ are true B) ‘a’ is true, ‘b’ is false C) ‘a’ is false, ‘b’ is true D) Both ‘a’ & ‘b’ are false