MDCAT Biology Chapter 13 MCQ's Test With Answers

MDCAT Biology Chapter 13 MCQ's Test

Sr. # Questions Answers Choice
1 Following is the structure of Uracil thymine Guanine Cytosine
2 When x-rays are passed through crystalline DNA, it shows helix makng one twist every 2 nm 3.4 nm 34 nm 4 nm
3 the gene of red-green colour blindness is present on Y-Chromosome X-Chromosome Auto some 7 Auto some 9
4 As a result of cross fertilization of a true breading pea plant having purple coloured flowers with that of white coloured flowers , the offerings will have flowers with. 1/4 purple, 3/4 white 1/4 white, 3/4 purple All white All purple
5 Self fertilization fo F-1 dihybride following independent assortment of alleles result in. 3/116 Tall-round 3/16 dwarf wrnkled 9/16 Tall round 3/16 dwarf round 9/16 Tall -round 3/16 dwarf-windkled 3/16 Tall Tall winkled , 3/16 dwarf -round
6 Locus stand for Position of gene on homologous chromosome Region of chromosome position of allele within a DNA molecule Close regions of same chromosome
7 The interaction between different gene occupying different led is Dominance Co dominance Pleiotropy Epistasis
8 The condition is which the hetero zygotes has a phenotype intermediate between contrasting homozygous parents is called as Dominance Incomplete dominance Co-dominance Over dominance
9 Bass substitution deletion and insertion are example of. Chromosomal aberration Point mutation Aneuploidy Euploidy
10 Pure breeding lines of pea were taken regarding seed shape, Round and wrinkled and were creased with no intermediate between parents. All eff springs were found to be round, these result show: Co-dominance Dominance relation ship Incomplete dominance Over dominance relationship
11 Large population size, random mating, ne mutation and no emigration of immigration are he postulates of Handy - Weinberg theorem Mendel's law f independent assortment Mendel's law of segregation Theory presented by scheleon and schwann
12 W.O.F shows evidence from evolution through molecular biology Development of bronchial arches in vertebrate embryo Distraction of species Comparison of genes and proteins in different species Study of vestigial organs
13 Process by which unreleased species evolve to functionally resemble each other is called Convergent evolution Divergent evolution Co evolution Paralle evolution
14 How denitrification does occur in silts Bacterial reduction of NO2 Ion in N2 Gas Active uptake of Nitrate ions by plant roots Drainage fo manure from fields Leaching of nitrate ions
15 Chemicals and for destroying agricultural competitors are knows as antibiotics Pesticides Disfectants Chamotherpeutis agents
16 Pakistan of cystic fibrosis Cr produce thick mucus because of facility Transmembrane carrier Cl ions Na+ ion Mocus membrane
17 _____________ is the 1st heat stable component used n PCR Taq somerase Taq helicase Taq polymerease Taq SSOBo
18 DNA segments of different length can be separated by process of Western blotting Nortern blotting Autoradiognorphy Gel electrophoreses
19 Restriction endonucleases are produced by Fungi Algae Bacteria Viruses
20 Glycerate 3-phosphate in the presence at ATP and reduce NADP from light dependent stage us radice to 3-carbon compound Ribulosaebis phosphate 5-carbon compound 6-carbon compound
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