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6201.

Question : The following diagrams are the DNA fingerprints of a child and suspected persons as the father of the child. a. Who do you think is the father? b. How can you identify the father? c. Write the principle used behind this.

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Solution :a. C - may be the true FATHER,
b. The bands presented is the FINGERPRINTS match between child and person C. It denotes that hereditary materials are more or less common in these two bands. Usually a child acquires 50% of hereditary material from his father. So .C. may be the true father of the child.
c. Principle behind it is Variable Number Tandem REPEATS (VNTR).
6202.

Question : The following diagrams are the age pyramids of different populations. Select the correct statements regarding the above:

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A-It is a pyramid-shaped age pyramid indicating decreased POPULATION growth.
B-It is an INVERTED bell-shaped pyramid indicating stable population.
C-It is urn-shaped pyramid indicating INCREASED population growth.
All statements are incorrect.

Answer :B
6203.

Question : The following diagram shows transport of ovum, fertilisation and passage of growing embryo. Choose the option that correctly identifies one of the stages and its characteristic.

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E: Morula - A HOLLOW ball of 8 to 16 blastomeres
G: GASTRULA - Has three primary germ layers
H: Blastocyst - Becomes embedded in the endometrium
B: Fertilisation - Several SPERMS penetrate the ovum

Answer :C
6204.

Question : The following diagrams are the age pyramids of different populations. Comment on the status of these populations .

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Solution :Fig.A : It is a pyramid SHAPED AGE pyramid. In this figure, the base i.e PRE reproductive stage is very large when compared with the reproductive and past reproductive stages of the population. This type of age structure indicates that the population would increase RAPIDLY.
Fig.B : It is an inverted bell shaped pyramid. In this figure, the pre-reproductive and reproductive stages are same. This type of age structure indicates that the population is stable.
Fig.C : It is .Urn. shaped pyramid. In this figure, the pre-reproductive and reproductive stages are less than the post reproductive stage of this population. In this population more older PEOPLE are present. This type of age structure indicates that the population definitely is declining.
6205.

Question : The following diagram represents

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pyramid of NUMBER in a GRASSLAND ecosystem
pyramid of number in a POND ecosystem
pyramid of number in a forest ecosystem
pyramid of BIOMASS in a pond ecosystem

Answer :C
6206.

Question : The following diagram is what a nurse saw on a patient's ECG trace, which measures the electrical impulse passed by the heart in one heartbeat. The first arrow on the left signifies the beginning of the beat and the second arrow on the right signifies the end of the beat.yo How many beats per minute did the nurse find in this patient?

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100
75
60
54

Answer :B
6207.

Question : The following compounds are intermediates in the Pathway of photorespiration I. phosphglycolate II. serine III.glyoxylate IV. glycine The correct sequence their appearance in the pathway is

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I, II, III, IV
I, III, IV, II
II, I, III, IV
II, I, IV, III

Answer :B
6208.

Question : The following derivative of primordial germ cell function is uncertain

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PRIMARY oocyte
Secondary oocyte
Polar body
Ovum

Answer :C
6209.

Question : The following compounds are intermediates in the pathway of photorespiration I) PhosphoglycolateII) Serine III) glyoxylate IV) glycine The correct sequence of their appearance in the pathway is

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I,II, III, IV
I,III, IV,II
II,I,III,IV
II,I,IV,III

Answer :B
6210.

Question : The following blod group is called universal recipient

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A
B
AB
O

Answer :C
6211.

Question : The following blood group is called universal donar

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A
B
AB
O

Answer :D
6212.

Question : The following are used as genetic markers

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RFLPS
REPEATED sequences
STRs
All the above

Answer :D
6213.

Question : The following are the two statements regarding alveolar fluid: (a) It contains a surfactant that reduces the tendency of alveoli to collapse. (b) Surfactant in the alveolar fluid lowers the surface tension. Of the above statements, which one of the following options is correct?

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(B) is CORRECT but (a) is false
Both (a) and (b) are correct
(a) is correct but (b) is false
Both (a) and (b) are false

Answer :B
6214.

Question : The following are the two statements regarding carbon dioxide: (a) Carbon dioxide produced during cellular respiration must be eliminated from the body. (b) Carbon dioxide reacts with water to form carbonic acid and thus increases pH. Of the above statements, which one of the following options is correct

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(B) is correct but (a) is FALSE
Both (a) and (b) are correct
(a) is correct but (b) is false
Both (a) and (b) are false

ANSWER :C
6215.

Question : The following are the binomials of economically useful plants. Mention their respective families. (a) Borassus flabellifer (b) Mangifera indica ( c) Saccharum officinarum (d) Curcuma longa (e) Capsicum annum (f) Tamarindus indica

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Solution :`{:("Economically useful plants",,"FAMILIES"),("(a) Borassus fiabellifer",-,"Arecaceae"),("(b) Mangifera indica",-,"ANACARDIACEAE"),("(c) SACCHARUM officinarum",-,"Poaceae"),("(d) Curcuma LONGA",-,"Zingiberaceae"),("(e) Capsicum annum",-,"SOLANACEAE"),("(f) Tamarindus indica",-,"Caesalpinioideae"):}`
6216.

Question : The following are the hormones secreted by suprarenal glands A)Cortisol B)Catecholamines C)Aldosterone D)Andogens Arrange them in a correct sequence as secrete by the concerned zones of the glands from outside to inside

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C-S-A-B
C-A-D-B
A-D-C-B
A-C-D-B

Answer :B
6217.

Question : The following are some well-known abbreviations, which have been used in this chapter. Expand each one to its full form. a. MALT b. CMI c. AIDS d. NACO e. HIV

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Solution :MALT - MUCOSAL Associated Lymphoid Tissue
CMI - Cell Mediated IMMUNITY
AIDS - Acquired Immune Deficiency Syndrome
NACO - NATIONAL AIDS CONTROL Organisation
HIV - Human Immuno deficiency Virus
6218.

Question : The following are some well known abbreviations. Expand each one to its full form HIV

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SOLUTION :HIV- HUMAN IMMUNO deficiety VIRUS
6219.

Question : The following are some well known abbreviations expand each one to its full form MALT

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Solution :MALT- MUCOSAL ASSOCIATED Lymphoid TISSUE
6220.

Question : The following are some well known abbreviations. Expand each one to its full form ELISA

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Solution :ELISA- Enzyme LINKED IMMUNO SORBENT ASSAY
6221.

Question : The following are some well known abbreviations. Expand each one to its full form NACO

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SOLUTION :NACO- NATIONAL AIDS CONTROL Society
6222.

Question : The following are some well-knownabbreviation which have been used in this chapter . Expland each one to its full form :(a) MALT (b) CMI (c) AIDS (d) NACO (e) HIV

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Solution :MALT : Mucosal Associated Lymphoid TISSUE.
CMI : Cell MEDIATED Immunity.
AIDS : Acquired Immuno Deficiecny Syndrome.
NACO : NATIONAL AIDS Control Organisation.
HIV : Human Immunodeficiency Virus
6223.

Question : The following are some well known abbreviations. Expand each one to its full form CMI

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SOLUTION :CMI-Cell MEDIATED IMMUNITY
6224.

Question : The following are sensitive to inhibitors

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Uniporters
Symporters
Antiporters
All the above

Answer :D
6225.

Question : The following are some well known abbreviations. Expand each one to its full form AIDS

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SOLUTION :AIDS- ACQUIRED Immuno DEFICIENCY Syndrome
6226.

Question : The following are found in Taenia solium. Which one is the correct sequence?

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Onchosphere, hexacanth, CYSTICERCUS, MATURED proglottid, GRAVID
Matured proglottid, cysticercus, gravid, onchosphere, gravid
Hexacanth, cysticercus, gravid, oncho-sphere, matured proglottid
Gravid, onchosphere, cysticercus, hexacanth, matured proglottid

ANSWER :A
6227.

Question : The following are absent in case of upper one third part of oesophagus, except

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VISCERAL PERITONEUM (SEROSA)
Degestive gland
Myenteric plexus
Skeletal muscles

Answer :D
6228.

Question :"The foetus obtain some antibodies from the mother through the placenta during pregnancy" It is an example of

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ACTIVE IMMUNITY
PASSIVE immunity
INNATE immunity
Acquired immunity

Solution : Passive immunity
6229.

Question : The focal length of the lens in eye is controlled by

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VITREOUS HUMOR
CILIARY MUSCLES
IRIS muscles
Pupil

Answer :D
6230.

Question : The foetal membrane that forms the basis of the umbilical cord is

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ALLANTOIS
AMNION
CHORION
YOLK sac

Solution :Allantois
6231.

Question : The fluid containing sperm si known as………….

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SPERM FLUID
semen
reproductive fluid
fertilization fluid

ANSWER :B
6232.

Question : What are the flower which bears pistils known as? Staminate Pistillate Monoecious Dioecious

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STAMINATE
Pistillate
Monoecious
Dioecious

Answer :B
6233.

Question : The flower shown in the adjacent diagram is

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Homochlamydeousunisexual and HYPOGYNOUS
Homochlamydeous BISEXUAL and epigynous
Dichlamydeous bisexual and hypogynous
Heterochlamydeous bisexual and epigynous.

Answer :C
6234.

Question : The flower possesses religious, cultural and scientific value

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Solution :Human BEINGS have had an intimate relationship with flowers since ancient times. Flowers are objects of asthetic ornamental, social and cultural VALUE. They have always been used as symbols for conveying important human feelings such as love, AFFECTION, happiness, GRIEF, MOURNING etc
6235.

Question : The flower of brinjal is referred to as chasmogamous while that of beans is cleistogamous . How are they different from each other ?

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SOLUTION :
6236.

Question : The flowcharts A and B given below represent the inheritance of normal haemoglobin and sickle cell haemoglobin. a. Observe the flowchart A and complete the flowchart B. b. Note down the genotype of a sickle cell anaemia patient and mention the symptom of the disease.c. Mention the peculiarity of Hb^(A) Hb^Sphenotype.

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Solution :a
b. `Hb^S Hb^s` (Homozygous). SEVERE anaemia, oxygen CARRYING capacity isvery LOW, sickle SHAPED haemoglobin.
c. `Hb^A Hb^S`(Heterozygous) indicates the carrier of sickle cell anemia, butare UNAFFECTED individuals.
6237.

Question : The flower may be of two or more types with regard to the length of style and lengths of stamens is called(A) heterostyly(B) homostyly(C) incompatibility(D) protandary

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heterostyly
homostyly
incompatibility
protandary

Answer :A
6238.

Question : The flow of genetic information is shown below. Name the process A and B DNAundersetararr mRNAundersetbrarr "protein"

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SOLUTION :a- Transcriptionb- TRANSLATION
6239.

Question : The flow of information from DNA to RNA to protein in biological system is called translation.

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True
False

Answer :CENTRAL DOGMA
6240.

Question : The flow of energy among various levels of an ecosystems

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UNIDIRECTIONAL 
Bidirectional
Multidirectional 
CIRCULAR 

SOLUTION :Unidirectional
6241.

Question : The flow of energy in the ecosystem is :

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Bidirectional
Cyclic
Unidirectional
Multidirectional

Answer :C
6242.

Question : The flow chart given below represents the process of recombinant DNA technology. Identify A,B, C and D.

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(a) A-Restriction endonuclease, B-Restriction exonuclease, C-DNA LIGASE, D-Transformation
(b) A-Restriction endonuclease, B-Restriction endonuclease, C-DNA ligase, D-Transformation
(c) A-Restriction endonuclease, B-Restriction endonuclease, C-Hydrolase, D-Transformation
(d) A-Restriction endonuclease, B-Restriction endonuclease, C-Hydrolase, D-Transduction

ANSWER :B
6243.

Question : The floral formula of family Brassicaceae includes all, except

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`K_(2+2)`
 `A_(2+4)`
`G_(1)`
 `C_(4)`

ANSWER :3
6244.

Question : The floral formula for Brassicaceae family is

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ANSWER :C
6245.

Question : The flora and fauna in lakes or ponds are :

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lentic biota
lotic biota
abiotic biota
field layer

Answer :A
6246.

Question : The fleshy receptacle of syconus of fig encloses a number of ,

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Berries
Mericarps
Achenes
Samaras

Answer :C
6247.

Question : The fixation and reduction of CO_2 occur in presence of

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ATP
ATP AND NADPH
NADPH CHLOROPHYLL and water
ATP, NADPH and LIGHT

Answer :B
6248.

Question : The fitness of individual with different phenotypes of the same trait differs in two different situation P and Q.P and Q respectively indicate

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DISRUPTIVE and DIRECTIONAL selection
directional and STABILISING selection
directional and disruptive selection
stabilising and disruptive selection

Answer :C
6249.

Question : The first virus to be cultured in human cells was

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POLIO VIRUS
DENGUE Virus
INFLUENZA Virus
HIV.

Answer :A
6250.

Question : The first transgenic cow, produced human protein- enriched milk. Name the cow and the protein found in milk.

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ANSWER :OSIE,Alpha-lactalbumin