4951 + Interview Questions in Biology in Class 10 Page 55 InterviewSolution

2701.	Question : Menopause is the stage in human female when
Answer» MENSTRUATION starts puberty begins menstruation STOPS and REPRODUCTIVE CAPACITY is arrested none of the above Answer :C

Discussion

2702.	Question : Mendel's laws apply only when
Answer» `F_(1)`in MONOHYBRID cross shows two types of individuals the characters are linked parents are pure breeding first PAIR of CONTRASTING character is dependent UPON other pairs Answer :C

Discussion

2703.	Question : Mendel's law of independent assortment is based on F_(2) ratio of :
Answer» `1:2:1` `9:3:3:1` `2:1` `3:1` ANSWER :B

Discussion

2704.	Question : Mendel's contribution to genetics was the
Answer» principle of MUTATION theory of natural selection law of INDEPENDENT ASSORTMENT of factors principle of genetic recombination Answer :C

Discussion

2705.	Question : Mendel's experiment to study inheritance in the pea plant (Pisum sativum) is shown in the following diagram. Study the diagram carefully and complete the empty boxes by filling them properly.
Answer» SOLUTION :

Discussion

2706.	Question : Mendel worked on :
Answer» EDIBLE PEA WILD pea Garden pea None of these Answer :C

Discussion

2707.	Question : Mendel was lucky in the choice of the material of his experiments, among the following, which contributed, to his success?
Answer» he OBSERVED distinct inherited traits he qualitatively ANALYSED his date he liked pea plants he CONSIDERED only ONE CHARACTER at one time Answer :D

Discussion

2708.	Question : Mendel was born in
Answer» AUSTRALIA GERMANY Britain Czechoslovakia ANSWER :D

Discussion

2709.	Question : Mendel took tall pea plants and short pea plants and produced F1 progeny through crossfertilisation. What did Mendel observe in the F1 progeny
Answer» Solution :On crossing PURE tall and pure short pea PLANTS, the F1 GENERATION was tall (but not pure). It was HETEROZYGOUS for tall.

Discussion

2710.	Question : Mendel studied seven contrasting characters for his breedinig experiment with Pisum sativum, which of the following character did he not use?
Answer» POD COLOUR pod SHAPE leaf shape plant height Answer :C

Discussion

2711.	Question : Mendel was
Answer» an Englishman an American a German an AUSTRIAN ANSWER :D

Discussion

2712.	Question : Mendel first crossedpure-bred pea plants having round-yellow seeds with pure-bred pea plants having wrinkled-green seeds and found that onlyround-yellow seeds were cross-bred by self pollination, then peas having round-yellow seeds, round green seeds, wrinkled-yellow seeds and wrinkled-green seeds were produced. Mendel collected a total of 2160 seeds. (a) What will be the number of (i) round green seeds(ii) wrinkled green seeds(iii) round yellow seeds, and (iv) wrinkled-yellow seeds ? (b) Which 'ratio' as established by Mendel have you made use of in answering the part (a) above ?
Answer» Answer :(a) (i) 405(II) 135(III) 1215(iv) 405(b) DIHYBRID ratio

Discussion

2713.	Question : Mendel crossed a pure white flowered recessive pea plant with a dominant pure red flowered plant. The first generation of hybrids from the cross should show
Answer» 50% white flowers and 50% red flowers all red FLOWERED plants 75% red flowered and 25% red flowered plants all white flowered plants Answer :B

Discussion

2714.	Question : Mendel crossed a pea plant having inflated green pod with a constricted yellow pod. What type of plants are obtained in F1 ?
Answer» SOLUTION :All PLANTS are INFLATED, YELLOW POD plants.

Discussion

2715.	Question : Mendel crossed a pea plant having inflated green pod with a constricted yellow pod. What type of a cross is it ?
Answer» SOLUTION :This is a DIHYBRID CROSS.

Discussion

2716.	Question : Mendel crossed a pea plant having inflated green pod with a constricted yellow pod. In F2 generation the phenotype ratio is 9 : 3 : 3 : 1. State the rule for the inheritance of traits observed by Mendel.
Answer» SOLUTION :In F2, new recombinants are produced as the traits are assorting independently. The law GIVEN by Mendel is .Law of Independent Assortment. which states that in a dihybrid cross where TWO different characters are being studied, which may be present together in an individual, are inherited independent of each other, in next generation.

Discussion

2717.	Question : Mendel conducted his hybridisation experiment with
Answer» CHICK pea pigeon pea garden pea wild pea Answer :C

Discussion

2718.	Question : Menaddicted to tobacco lead to oxygen deficiency in their body. What cauld be the possible reason ?
Answer» Solution :CARBON MONOXIDE of TOBACCO smoke binds to haemoglobin of RBC and decreases its oxygen carrying CAPACITY causing hypoxia in body tissues.

Discussion

2719.	Question : …………………membranes protect the brain from mechanical injury.
Answer» SOLUTION :MENINGEAL

Discussion

2720.	Question : Membrane fluditiy is maintained in cold weather by
Answer» increasing the proportion of integral proteins increasing the number of phosholipids with unsaturated HYDROCARBON tails increasing the CONCENTRATION of cholesterol in MEMBRANE increasing the number of phospholipids with SATURATED hydrocarbon tails Solution :N/A

Discussion

2721.	Question : Membrane bound organelles are absent in
Answer» Plasmodium Saccharomyces Streptococcus Chlamydomonas Answer :C

Discussion

2722.	Question : Members of order Rodentia have
Answer» LONG incisors small incisors long canines long MOLARS ANSWER :A

Discussion

2723.	Question : Meiosis is a special type of cell division which results in formation of____________ which have half the number of chromosomes.
Answer» SOLUTION :GERM cell/gamete

Discussion

2724.	Question : Meena is always in a hurry. She just gulps her food quickly and rushes out to play badminton with her friend.Moreover, she is fond of eating junk food such as burgers and pizzas. Meena hates to eat fresh green vegetables and prefers only pulses (dal). Meena usually complains of stomach ache while playing. Meena looks pale, feels very weak and tires easily. Her nails are turning white and she has also started losing weight. (a) What could probably be the reason for Meena's stomach ache while playing ? What is the harm of eating too much junk food ? (c ) Name the disease Meena is suffering from which makes her look pale, feel very weak and tired, and lose weight. (d) What is the cause of Meena's disease ? (e) How does this disease affect Meena ? Explain. (f) What advice would you give to Meena to get rid of all the ailments described above ?
Answer» Solution :(a) One of the probable reasons for the stomach ache of Meena while playing could be that she gulps her food in big chunks (without chewing) just before going to play. The big chunks of food could hit the stomach wall while playing and CAUSE stomach ache. (b) JUNK food does not make a balanced diet. Junk food lacks many essential nutrients leading to some deficiency diseases. (c ) Meena is suffering from a disease called 'anaemia'. (d) The cause of Meena's disease anaemia is the deficiency ofhaemoglobin in her blood which comes from the deficiency of iron MINERAL in her diet (because iron mineral is essential for making haemoglobin). (e) The function of haemoglobin is to carry oxygen in the body. Due to deficiency of haemoglobin (caused by lack of iron in diet), the blood of Meena is not able to carry sufficient oxygen to all the body cells to meet their requirements of oxidation of food and production of energy. In this way, deficiency of haemoglobin results in the production of less energy for Meena. Since she has less energy than NEEDED, she feels weak, tired and loses weight. The deficiency of red coloured haemoglobin also makes her look pale and turns her nails WHITE (instead of red). (f) (i) Meena should chew her food properly while eating and convert it into as small particles as possible. This will also help in mixing saliva with food for proper digestion. In this way, her stomach ache may disappear. (ii) Meena should avoid eating too much of junk food. It may cause deficiency diseases and also lead to obesity. (iii) Meena should include spinach (palak, saag), other green leafy vegetables, apples, etc., in her diet because all these food items contain a good amount of iron mineral. This will cure anaemia.

Discussion

2725.	Question : Megasporangium along with its protective integuments is called
Answer» ovary ovule funicle chalaza Answer :B

Discussion

2726.	Question : Medullated and non-medullated nerve fibre.
Answer» SOLUTION :

Discussion

2727.	Question : Medical termination of pregnancy after being legalised in 1971 has resulted in the increased cases of illegal sex and has reduced the fear of bearing illegal child. Suggest three measures to reduce the cases of illegal sex/medical termination of pregnancies.
Answer» Solution :Medical Termination of pregnancy (MTP) is a method that should be USED only if the foetus has some defect, or if it is life-threatening to the mother. It should not be used as a contraceptive method. Thus, MTPs should be avoided. Illegal sex should be avoided, which may also CAUSE STDs. •It can also lead to health problems to the mother. • It can also result in infections. Three measures to reduce cases of medical termination of pregnancy are Using CONTRACEPTIVES LIKE (i) Physical Barrier - Condom (II) Intra-Uterine Devices - Cu-T (iii) Surgical Method - Vasectomy and Tubectomy.

Discussion

2728.	Question : Mechanical tissues are very poorly developed in
Answer» XEROPHYTES HALOPHYTES HYDROPHYTES lithophytes ANSWER :C

Discussion

2729.	Question : Meat is easier to digest as compared to grass. Why?
Answer» Solution :It is easier to DIGEST meat because our digestive JUICES contain ENZYMES which can easily digest meat but our body does not digest cellulose which is MAIN component of GRASS.

Discussion

2730.	Question : Measurement of rate of oxygen utilisation by a unit volume of water over a period of time is to measure
Answer» BIOCHEMICAL OXYGEN demand biosynlhetic pathway biogas generation fermentation ANSWER :A

Discussion

2731.	Question : Maximum threat to the world is from
Answer» GLOBAL WARMING ozone HOLE water POLLUTION soil EROSION Answer :B

Discussion

2732.	Question : Maximum ribosomes would be present in,
Answer» DEAD CELLS PARENCHYMA cells LIGNIFIED cells meristematic cells Answer :D

Discussion

2733.	Question : Maximum permissible noise as per Noise Pollu- tion Rules 2000 is
Answer» 75 dB 65 dB 55 dB 45 dB Answer :A

Discussion

2734.	Question : Mature sperm are stored in the
Answer» SEMINIFEROUS tubules vas deferens epididymis SEMINAL vesicles Answer :C

Discussion

2735.	Question : MatureRBCin mammalsdo nothavecellorganelles .
Answer» Solution :Mature RBC in mammals do not have cell organelles because (a) The lack of Nucleus in RBC makes the cells, biconcave and disc SHAPED. RBC involved in the transport of Oxygen from lungs to tissues. (b) They do not have cell organelles in ORDER to ACCOMMODATE maximum space for haemoglobin. (c) The loss of endoplasmic RETICULUM allows more flexibility, for RBC to move through narrow CAPILLARIES.

Discussion

2736.	Question : Mature larva of housefly is
Answer» maggot wriggler grub caterpillar ANSWER :A

Discussion

2737.	Question : Match the terms in Column (A) with those in Column (B):
Answer» Solution :(i) — (a), (II)— (d), (III) — (b), (IV) — (C)

Discussion

2738.	Question : Match the organisms given in column I with the method of reproduction / propagation given in column II :{:(,"Column I", ,"Column II"),((i),"Plasmodium",(a), "Spore formation"),((iv),"Spirogyra",(b),"Leaves"),((ii),"Jasmine",(c),"Regeneration"),((iv),"Apple tree",(d),"Budding"),((v),"Bryophyllum",(e),"Binary fission"),((vi),"Potatoes",(f),"Layeri ng"),((vii),"Rhizopus",(g),"Fragmentation"),((viii),"Hydra",(h),"Tubers"),((ix),"Planaria",(i),"Cuttings"),((x),"Leishmania",(j),"Multile fission"),((xi),"Sugar cane",(k),"Grafting"),((xii),"Rose",,):}
Answer» SOLUTION :N//A

Discussion

2739.	Question : Match the following terms with their respective meanings - Section II
Answer» Solution :1.(d) Blood CANCER2.(a) Thrombocytes3.(b) Phagocyte4.(c) Decrease in leucocytes5.(H) ABSENCE of antibody6.(g) Absence of antigen7.(E) Allergic condition8.(f) Inflammation

Discussion

2740.	Question : Match the following -Section I
Answer» Solution :1. (B) Plasmodesmata2.(a) LEAF3.(d) Pressure GRADIENT4.(b) Pressure in XYLEM

Discussion

2741.	Question : Match the following hormones with their deficieney states:
Answer» SOLUTION :1. (C) Simple GOITRE2. (e) Diabetes MELLITUS 3. (b) Tetany 4. (a) Acromegaly5. (d) Diabetes insipidus

Discussion

2742.	Question : Match the following endocrine glands with their location
Answer» Solution :1. (f) Base of mid BRAIN 2 (h ) Trachea3. (d) Posterior surface of thyroid lobe4. (g) Pancreas5. (C ) Above the kidney6. (b) Male sex gland7. (a) Female sex gland8. ( e) Upper part of chest, lower end of Trachea

Discussion

2743.	Question : Match the following:
Answer» ANSWER :(1- Q), (2 - s), (3-p), (4-r)

Discussion

2744.	Question : Match the following:
Answer» ANSWER :(1-q), (2-p), (3-s), (4-r)

Discussion

2745.	Question : Match the following:
Answer» ANSWER :(1- Q), (2 - t), (3-u), (4-p), (5-r), (6-s)

Discussion

2746.	Question : Match the following:
Answer» ANSWER :(1-q), (2- s), (3-p), (4-r)

Discussion

2747.	Question : Match the following:
Answer» ANSWER :(1-r), (2-p), (3-s), (4-q)

Discussion

2748.	Question : Match the following:
Answer» <P> ANSWER :(1-r), (2 - s), (3-q), (4- p)

Discussion

2749.	Question : Match the following
Answer» SOLUTION :(1-q), (2-p), (3-s), (4-1).

Discussion

2750.	Question : Match the following
Answer» SOLUTION :(1-s), (2-r), (3-4), (4-p).

Discussion

Explore topic-wise InterviewSolutions in .

Question : Menopause is the stage in human female when

Question : Mendel's laws apply only when

Question : Mendel's law of independent assortment is based on F_(2) ratio of :

Question : Mendel's contribution to genetics was the

Question : Mendel's experiment to study inheritance in the pea plant (Pisum sativum) is shown in the following diagram. Study the diagram carefully and complete the empty boxes by filling them properly.

Question : Mendel worked on :

Question : Mendel was lucky in the choice of the material of his experiments, among the following, which contributed, to his success?

Question : Mendel was born in

Question : Mendel took tall pea plants and short pea plants and produced F1 progeny through crossfertilisation. What did Mendel observe in the F1 progeny

Question : Mendel studied seven contrasting characters for his breedinig experiment with Pisum sativum, which of the following character did he not use?

Question : Mendel was

Question : Mendel crossed a pure white flowered recessive pea plant with a dominant pure red flowered plant. The first generation of hybrids from the cross should show

Question : Mendel crossed a pea plant having inflated green pod with a constricted yellow pod. What type of plants are obtained in F1 ?

Question : Mendel crossed a pea plant having inflated green pod with a constricted yellow pod. What type of a cross is it ?

Question : Mendel crossed a pea plant having inflated green pod with a constricted yellow pod. In F2 generation the phenotype ratio is 9 : 3 : 3 : 1. State the rule for the inheritance of traits observed by Mendel.

Question : Mendel conducted his hybridisation experiment with

Question : Menaddicted to tobacco lead to oxygen deficiency in their body. What cauld be the possible reason ?

Question : …………………membranes protect the brain from mechanical injury.

Question : Membrane fluditiy is maintained in cold weather by

Question : Membrane bound organelles are absent in

Question : Members of order Rodentia have

Question : Meiosis is a special type of cell division which results in formation of____________ which have half the number of chromosomes.

Question : Megasporangium along with its protective integuments is called

Question : Medullated and non-medullated nerve fibre.

Question : Medical termination of pregnancy after being legalised in 1971 has resulted in the increased cases of illegal sex and has reduced the fear of bearing illegal child. Suggest three measures to reduce the cases of illegal sex/medical termination of pregnancies.

Question : Mechanical tissues are very poorly developed in

Question : Meat is easier to digest as compared to grass. Why?

Question : Measurement of rate of oxygen utilisation by a unit volume of water over a period of time is to measure

Question : Maximum threat to the world is from

Question : Maximum ribosomes would be present in,

Question : Maximum permissible noise as per Noise Pollu- tion Rules 2000 is

Question : Mature sperm are stored in the

Question : MatureRBCin mammalsdo nothavecellorganelles .

Question : Mature larva of housefly is

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