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Quiz 29
Mdcat-past-papers - ETEA Quiz
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Board: ETEA |
561. Locus of gene on a chromosome means its:
Position
Function
Start point
End Point
562. A male or female child of an affected mother has 50% chance of acquiring the disorder. Such a disorder is:
X linked recessive disorder
X linked dominant disorder
Y linked Dominant disorder
Y linked recessive Disorder
563. Mendel's law of independent assortment can be explained by:
Behaviour of chromosomes in mitosis
Gene behaviour in meiosis
Behaviour of chromosomes in meiosis
both a & b
564. The genetic make up that your parents have transferred to you for your hair color, makes up your:
Genotype
Trait
Phenotype
None of the above
565. Which term best describes an organism's physical characteristic?
Allelic
Trait
Genotype
Phenotype
566. Who proposed the concept that an organism can pass on acquired modifications to its offspring?
Lamarck
Darwin
Malthus
Aristotle
567. According to Neo-Darwinism, Which of the following is a cause of evolution?
Reproductive isolation
Infinite large population
Environmental Stability
a and b
568. Darwin's Origin of species by natural selection is mainly concerned with:
Origin of life
Adaptation
Extintion
Speciation
569. The basis of Lamarck theory of inheritance is:
Survival of the fittest
Selection by nature
Inheritance of acquired character
Theory of special creation
570. The embryological stages of ------- show similarity in anatomical features.
All living things
All vertebrates
All non-vertebrates
Human, jelly fish and mouse
571. Wings of birds and that of flying lizards provide the evidence of:
Convergent evolution
No evolution
Divergent evolution
Same origin
572. According to Lamarckism, the basis of evolution is:
Inheritance of acquired characteristics
Natural selection
Mutation
Survival of the fittest
573. What best describes the hind leg bones seen in the whale?
Analogous to the fin of living fish
Fossil structure from an extinct ancestor
Homologous structure of the wings of a bat
Vestigial structures that had a function in an ancestor
574. The term "survival of the fittest" was used by:
Lamarck
Darwin
Herbert Spencer
Mayr
575. The raw material that is used by natural selection for better survival is/are:
Variation only
Mutation only
Similarity
Variation and mutation
576. Genetic drift is change in the allele frequency of population due to:
Random chance
Non random mating
Natural selection
Artificial selection
577. 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
578. What is the other name for Positive rays?
Canal rays
Magnetic rays
Quantum
Photon rays
579. What is the radius of the 3rd orbit of electron in H-atom?
3.39A°
4.761A°
5.29 × 10-1A°
9.7A°
580. What is the magnetic quantum number for S-orbital?
1
3
5
7
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