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Quiz 178
Mdcat-past-papers Quiz
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3541. These are the genes which tend to be inherited together and do not assort independently
Linked gene
Dependent genes
Recombinant gene
Independent genes
3542. The frequency of mutant gene in a population would be likely to be increased if
Gene were selectively advantageous
Gene were dominant
Population increase
Gene were Sex-linked
3543. Two allelic genes at the same locus when expressed fully an individual it is considered as
Co-dominance
Complete dominance
Incomplete dominance
Epistasis
3544. What is the primary outcome of crossing over during prophase of meiosis 1
Chromosomes duplicate without any exchange of parts
Homologous chromosomes exchange different pairs leading to recombinant chromatids and increased genetic variation
Homologous chromosomes exchange identical parts, resulting in no genetic variation
Non-homologous chromosomes exchange parts
3545. #NAME?
Dominant
Recessive
Co-Dominant
Multiple
3546. When both the alleles of a gene pair are same the organism is said to be
Heterozygous
Genotype
Homozygous
Phenotype
3547. If a man passes a disease to all of his daughters and not a son it is
Sex Linked Dominant
Sex Linked Recessive
Autosomal Dominant
Autosomal Recessive
3548. Defect gene present on X chromosome will normally be constructed to male off spring by:
mother
father
Mutation
segregation
3549. The gene which control ABO group has how many alleles in an individual:
1
2
3
4
3550. Which of the following is a physical relationship of genes present on same chromosomes?
Epistasis
linkage
crossing over
pleiotropy
3551. Phenotype for both TT and Tt is tall, so the allele T is known as:
Dominant
Recessive
Homozygous
Heterozygous
3552. The nature of cathode rays in a discharge tube :
Depends upon nature of gas taken in discharge tube
Depends upon nature of cathode in discharge tube
Is independent of nature of gas in discharge tube
Depends upon the nature of anode in discharge tube
3553. According to the number of protons, neutrons & electrons given in the table, which are of Species Protons Neutron Electron As 33 42 30 Ga 31 39 28 Ca 20 20 20
As3+,Ga3+,Ca
As3+,Ga3+,Ca2+
As3+,Ga+2,Ca
As+1,Ga,Ca+2
3554. Numbers of neutrons in 66Zn30 will be:
30
35
38
36
3555. According to which scientist, the probability of finding an electron at a certain position is possible?
Bohr's
De-Broglie
Hund's
Schrodinger
3556. Radius of first orbit of hydrogen is 0.53°A. Which orbit has a radius of 4.77°A?
First
Second
third
Fourth
3557. What is mass of one proton? correct representation?
Equal to 1836 electron
Equal to positron
Equal to electron
Equal to 1836 neutron
3558. 10 pascal is equal to:
0.000098atm
1.98 atm
10.019kpa
4.014 psi
3559. Which gas in the discharge tube has the highest e/m ratio?
Oxygen
Helium
Nitrogen
Hydrogen
3560. What is the other name for Positive rays?
Canal rays
Magnetic rays
Quantum
Photon rays
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