NAT II Biological Science Botany With Answers

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NAT II Biological Science Botany

Sr. # Questions Answers Choice
1 Which of the following can be used as evidence of evolutions? Comparative embryology Comparative anatomy Genetic Code All of these
2 In fishes, gill pouches develop into Gills Threat & Middle ear Eustachian tubes Both A and B
3 Gene pool is the total aggregate of gene a ----------- at any one time. Individual Population DNA Chromosome
4 A sex limited trait is limited to only one sex due to Taxonomic differences Ecological differences Physiological Anatomical difference
5 Locus is Segment of chromosome Position of a gene on the chromosome Genes present on one chromatid Collection of genes at specific part of chromosome
6 The phenomenon of interference / hide the effect of one gene present at one locus by the other gene present at other locus is called Epistasis Crossing over Gene linkage Synapsis
7 Following statement is in accordance to Darwinisw Natural Selection Over Production Survival of fittest All of these
8 Green color blindness is called Parotanopia Denteranopia Tritanopia Non of these
9 Nullo gamete is With one sex chromosome With one sex chromosome present With no sex chromosome Without any chromosome
10 A women red green color blind marries a red green color blind man, what is the probability of the first born child red green color blind? 100% 50% 75% 25%
11 Match with Lamarckism Inheritance of acquired characteristics Long neck of giraffe is evolved gradually as cumulative product of many generations Body parts used extensively become stronger and larger All A, B and C<div><br></div>
12 Those individuals whose inherited characteristic fit them best to their environment are likely to leave more offspring, it is referred as Artificial selection Natural Selection Survival of the fittest Both B and C
13 Which of the following describes the process of natural selection? Change from simple to more complex organisms Differential reproductive success between genotypes Increase in size of population Occurrence of new mutations
14 Which true about pattern baldness except It is x-linked disease It is sex influenced trait It is autosomal recessive trait in females It is autosomal dominant trait in male
15 Males suffering from Jacobs's syndrome have sex chromosomes XXX XO XXY XYY
16 If sex chromosomes are more than two in an individual, these are called as Multiple sex chromosomes Compound sex chromosomes Autosome + sex chromosomes Pseudo autosome
17 When a single gene effects two or more traits the phenomenon is called Epistasis Bombay phenotype Gene linkage Pleiotropic
18 Cytochrome 'c' found is all aerobic species is a respiratory Carbohydrate Protein Co-enzyme Vitamin
19 Protanopia is Green blindness Red blindness Yellow blindness Blue blindness
20 The botanical name of date (khajoor) is Phoenix slyvestris Cucusmucifera Cryotaurens Raphisruffia
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