24277 + Interview Questions in Biology in Class 12 Page 23 InterviewSolution

1101.	Question : What will be the genotypes of parents whose offsprings have equal percentage of four phenotypes ?
Answer» AABBCCDD`XX` aabbCCdd AABBCC `xx` AaBbCc AaBbCCDD `xx` aabbCCDD AaBbCcDd `xx` AaBbCcDD Answer :C

Discussion

1102.	Question :What will be the gametic chromosome number of a cell , if somatic cell have 40 chromosomes ?
Answer» 10 20 30 40 Answer :B

Discussion

1103.	Question : What will be the fate of antipodal cells after fertilisation ?
Answer» SOLUTION :They DEGENERATE after FERTILIZATION.

Discussion

1104.	Question : What will be the eye character of a male child if a colourblind woman marries a normal-visioned man ?
Answer» ANSWER :COLOURBLIND

Discussion

1105.	Question : What will be the effect of accumulation of K^+ions in guard cells
Answer» WATER POTENTIAL increases Water potential decreases Loss of turgidity Exosmosis Answer :B

Discussion

1106.	Question : What will be the direction of net movement of water between cell A and B, if DPD of A is lower than B ?
Answer» A TO B B to A Equally bidirectional No NET movement Answer :A

Discussion

1107.	Question : What will be the direction of energy flow between PS-I and PS-II when two pigment system absorb light ?
Answer» `PS - II rarr PS - I ` `PS - I rarr PS - II ` `PS - II hArr PS - I ` NONE of these ANSWER :A

Discussion

1108.	Question : What will be the correct gene expression pathway ?
Answer» gene-mRNA-transcription-translation-protein Transcription-gene-translation-mRNA-protein gene-transcription-mRNA-translation-protein gene-translation-mRNA-transcription-protein Answer :C

Discussion

1109.	Question :What will be the consequences of loss of biodiversity?
Answer» Solution :Loss of biodiversity has a immense impact on plant and animal life. The loss of diversity leads to, i. Extinction of species ii. Dramatic INFLUENCE on food chain and food WEB iii. It will LEAD to immediate danger for food necessity.

Discussion

1110.	Question : What will be happen if you add a small amount of curd to the fresh milk and keep it for few hours at 25^(@)C. Name the process, chemical changes and the resultant products. Name any three edible products prepared from it.
Answer» Solution :The milk will be converted into fermented milk and finally into curd. The process is called lactic ACID FERMENTATION During the process the microorganisms such as Lactobaccillus, LACTOCOCCUS, Pediococcus, Streptococcus and others commonly called lactic acid bacteria (LAB) CONVERT Lactose (Carbohydrates) into lactic acid by fermentation and coagulate milk protein (CASEIN) to produce homogenous curd.

Discussion

1111.	Question : What will be effect of Ozone depletion on Earth?
Answer» Solution :UV RAYS may penetrate DEEP into the skin and can lead to premature skin aging and wrinkling of skin, suppression of the immune system, skin cancer (MELANOMA) and chronic effects leading to eye DAMAGE. DNA damage can result from free radicals and REACTIVE oxygen and photons can damage the DNA itself.

Discussion

1112.	Question : What were the views of Charles Darwin about the evolution of life forms?
Answer» Solution :Views of CHARLES Darwin The existing living organisms share similarities to varying degrees, not only among themselves but also with the life forms that existed millions of years ago. There has been a gradual evolution of life forms during different periods of geological history. Extinctions also have occurred. Any POPULATIONS have a built in variation for characteristics. Individuals with those characteristics which enable them to survive better (fitness of individual) in natural conditions, WOULD out number others which are less adapted under the same natural conditions. Such a fitness of the individual refers ultimately and only to reproductive fitness. Such fit individuals leave BEHIND more progeny than others and are selected by nature to survive and reproduce to increase their population size.

Discussion

1113.	Question : What was used to prove that the source of oxygen evolved during photosynthesis is water?
Answer» SOLUTION :Heavy isotope of oxygen `.^(18)O_(2)` was USED to prove that the source of oxygen evolved during PHOTOSYNTHESIS is WATER.

Discussion

1114.	Question : What were the characteristics of life forms that had been fossilised ?
Answer» Solution :Fossils are FORMED of hard parts (LIKE BONES, teeth, etc.). Burial should be in a medium where no oxidation I,". of the MATERIAL can OCCURS.

Discussion

1115.	Question : What was the theme of world No-Tobacco Day-2000?
Answer» SOLUTION :"CESSATION- LEAVE the PACKS BEHIND".

Discussion

1116.	Question : What was the reason of mass extinction during Mesozoic era?
Answer» DUE to METEORITE FALLING on earth Due to CONTINENTAL drift Glaciation Volcanic eruption Answer :A

Discussion

1117.	Question : What was the purpose of establishing Jim Corbett National Park?
Answer» SOLUTION :To CONSERVE TIGER, PANTHER, ELEPHANT

Discussion

1118.	Question : What was the nature of atmosphere on the primitive earth?
Answer» SOLUTION :REDUCING

Discussion

1119.	Question : What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors ?
Answer» UPRIGHT posture Shortening of jaws Binocular VISION INCREASING BRAIN CAPACITY Solution : Increasing brain capacity

Discussion

1120.	Question : What was the most significant trend in evolution of modern man (Homo sapiens) from his ancestors?
Answer» Upright posture SHORTENING of jaws Binocular vision INCREASING brain capacity SOLUTION : Increasing brain capacity

Discussion

1121.	Question : What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?
Answer» UPRIGHT posture Shortening of jaws Binocular visions Increasing BRAIN capacity Answer :D

Discussion

1122.	Question : Whatwas the mostsignificant trend in the evolutionof modern man (Homo sapiens) from hisancestors ?
Answer» INCREASING carnail CAPACITY Uprigth posture Shorteningof JAWS Binocular vision ANSWER :D

Discussion

1123.	Question : What was sealed in the spark chamber in famous Miller and Urey simulation experiment ?
Answer» SOLUTION :MIXTURE of methane `(CH_4)`, AMMONIA `(NH_3)`, HYDROGEN `(H_2)` gas and water `(H_2O)` vapours

Discussion

1124.	Question : What was the colour of high yielding Mexican wheat ?
Answer» White Pink RED Grey SOLUTION :Red

Discussion

1125.	Question : What was the kind of atmosphere on the primitive earth?
Answer» SOLUTION :The ATMOSPHERE on the primitive earth was reducing one without FREE oxygen.

Discussion

1126.	Question : What was the human population India according to 2001 census ?
Answer» ANSWER :1027 MILLION

Discussion

1127.	Question : What was his brain's capacity?
Answer» SOLUTION :1400 c.c.

Discussion

1128.	Question : What was human population in India according to 2011 census?
Answer» SOLUTION :1210.2 MILLIONS

Discussion

1129.	Question : What used to be described as Nissl's granules In a nerve cell are now identified as
Answer» CELL metabolites Fat granules Ribosomes Mitochondria Answer :C

Discussion

1130.	Question : What types of tissue's are the cartilages and bones?
Answer» · Answer :CONNECTIVE TISSUES

Discussion

1131.	Question : What types of genotypes are expected when a plant with AABb genotypes is self-pollinated ?
Answer» 3 AABB : 1 AABb 3 AABB :1 Aabb 1 AABB : 1 Aabb 4 AABB : 8 AABb : 4 AAbb Answer :D

Discussion

1132.	Question : What types of enzymes arepresent in lysosomes?
Answer» ANSWER :HYDROLYTIC

Discussion

1133.	Question : What types of joint is seen in the skull ?
Answer» ANSWER :FIXED or FIBROUS

Discussion

1134.	Question : What type of virus causes AIDS? Name its genetic material.
Answer» Solution :AIDS is caused by retrovirus, HIV (HUMAN IMMUNODEFICIENCY Virus). Its genetic MATERIAL is RNA.

Discussion

1135.	Question : What type of technique is used for amplification of DNA ?
Answer» ANSWER :A::C

Discussion

1136.	Question : What type of stem bamboo is ?
Answer» ANSWER :CULM

Discussion

1137.	Question : What type of sorus is present in Nephrolypis?
Answer» Coenosorus Simple Mixed None of these Solution :Neoprolepis SPORANGIA arise WITHOUT any order of DEVELOPMENT, THEREFORE are called mixed type. Some species (N, acutifolia) hae coenosori.

Discussion

1138.	Question : What type of reaction occurs when Malic acid is converted into Pyruvic acid in the bundle sheath cells of C_4 plants
Answer» DECARBOXYLATION Dehydrogenation OXIDATIVE decarboxylation Transamination ANSWER :C

Discussion

1139.	Question : What type of placentation is seen in sweet pea ?
Answer» Marginal Basal Axile FREE central Answer :A

Discussion

1140.	Question : What type of perennating structures are produced by lower plants to overcome adverse environmental conditions ?
Answer» Solution :THICK WALLED spores are PRODUCED in algae.

Discussion

1141.	Question : What type of organs eye of an Octopus and that of a human called? Give another example from the animal group and one from the plants of such organs. Name and explain the evolutionery process they exhibit.
Answer» SOLUTION :Analogous organ is found in both octopus and human . For example : wings of BUTTERFLY and of birds look alike. They are not anatomically similar structures though they perform similar functions. SIMILARLY in plants : Sweet potato and potato is ANOTHER example of ANALOGY. They exhibit convergent evolution : different structures evolving for the same function and hence, having similarity.

Discussion

1142.	Question : what type of phyllotaxy is found in china rose?
Answer» SUPERIMPOSED opposite Alternate Whorled Decussate opposite Answer :B

Discussion

1143.	Question : What type of organ the vermiform appendix of man is?
Answer» Homologous Analogous Vestigial None of these Answer :C

Discussion

1144.	Question : What type of nerve fibers present in white matter ?
Answer» ANSWER :Medullated / Myelinated

Discussion

1145.	Question : What type of linkage is seen in male Drosophila ?
Answer» ANSWER :COMPLETE LINKAGE

Discussion

1146.	Question : What type of kidneys are seen in human body?
Answer» ANSWER :Metanephric

Discussion

1147.	Question : What type of human population is represented in the following pyramid ?
Answer» EXPANDING POPULATION VANISHING population DECLINING population Stable population ANSWER :A

Discussion

1148.	Question : What type of human population is represented by the following age pyramid
Answer» EXPANDING POPULATION VANISHING population STABLE population Declining population Answer :D

Discussion

1149.	Question : What type of growth status the following pyramid represents.
Answer» SOLUTION :DECLINING POPULATION.

Discussion

1150.	Question : What type of human population is represented by the following age pyramid ?
Answer» VANISHING population Stable population Declining population Expanding population Answer :C

Discussion

Explore topic-wise InterviewSolutions in .

Question : What will be the genotypes of parents whose offsprings have equal percentage of four phenotypes ?

Question :What will be the gametic chromosome number of a cell , if somatic cell have 40 chromosomes ?

Question : What will be the fate of antipodal cells after fertilisation ?

Question : What will be the eye character of a male child if a colourblind woman marries a normal-visioned man ?

Question : What will be the effect of accumulation of K^+ions in guard cells

Question : What will be the direction of net movement of water between cell A and B, if DPD of A is lower than B ?

Question : What will be the direction of energy flow between PS-I and PS-II when two pigment system absorb light ?

Question : What will be the correct gene expression pathway ?

Question :What will be the consequences of loss of biodiversity?

Question : What will be happen if you add a small amount of curd to the fresh milk and keep it for few hours at 25^(@)C. Name the process, chemical changes and the resultant products. Name any three edible products prepared from it.

Question : What will be effect of Ozone depletion on Earth?

Question : What were the views of Charles Darwin about the evolution of life forms?

Question : What was used to prove that the source of oxygen evolved during photosynthesis is water?

Question : What were the characteristics of life forms that had been fossilised ?

Question : What was the theme of world No-Tobacco Day-2000?

Question : What was the reason of mass extinction during Mesozoic era?

Question : What was the purpose of establishing Jim Corbett National Park?

Question : What was the nature of atmosphere on the primitive earth?

Question : What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors ?

Question : What was the most significant trend in evolution of modern man (Homo sapiens) from his ancestors?

Question : What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?

Question : Whatwas the mostsignificant trend in the evolutionof modern man (Homo sapiens) from hisancestors ?

Question : What was sealed in the spark chamber in famous Miller and Urey simulation experiment ?

Question : What was the colour of high yielding Mexican wheat ?

Question : What was the kind of atmosphere on the primitive earth?

Question : What was the human population India according to 2001 census ?

Question : What was his brain's capacity?

Question : What was human population in India according to 2011 census?

Question : What used to be described as Nissl's granules In a nerve cell are now identified as

Question : What types of tissue's are the cartilages and bones?

Question : What types of genotypes are expected when a plant with AABb genotypes is self-pollinated ?

Question : What types of enzymes arepresent in lysosomes?

Question : What types of joint is seen in the skull ?

Question : What type of virus causes AIDS? Name its genetic material.

Question : What type of technique is used for amplification of DNA ?

Question : What type of stem bamboo is ?

Question : What type of sorus is present in Nephrolypis?

Question : What type of reaction occurs when Malic acid is converted into Pyruvic acid in the bundle sheath cells of C_4 plants

Question : What type of placentation is seen in sweet pea ?

Question : What type of perennating structures are produced by lower plants to overcome adverse environmental conditions ?

Question : What type of organs eye of an Octopus and that of a human called? Give another example from the animal group and one from the plants of such organs. Name and explain the evolutionery process they exhibit.

Question : what type of phyllotaxy is found in china rose?

Question : What type of organ the vermiform appendix of man is?

Question : What type of nerve fibers present in white matter ?

Question : What type of linkage is seen in male Drosophila ?

Question : What type of kidneys are seen in human body?

Question : What type of human population is represented in the following pyramid ?

Question : What type of human population is represented by the following age pyramid

Question : What type of growth status the following pyramid represents.

Question : What type of human population is represented by the following age pyramid ?