Practice Biology questions - general science mcq Online Quiz (set-1) For All Competitive Exams
Q-1) The number of autosomes in human female ovum is
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(d)
In human female ovum, number of autosome are 22 pairs.
Q-2) Consider the following statements : - Test is used to determine an unknown genotype within one breeding generation.
- Test cross is a cross between $F_1$ hybrid and dominant parent.
- Test cross is a cross between $F_1$ hybrid and recessive parent.
Which of the statement(s) given above is/are false about test cross?
(a)
(b)
(c)
(d)
Test Cross involves the breeding of a dominant trait individual with a homozygous recessive individual, in order to determine the zygosity of the former by analysing proportions of offspring with the recessive phenotype.
Q-3) Which of the following animal is not a insect ?
(a)
(b)
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(d)
Q-4) Gaucher’s disease is associated with abnormal metabolism of
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(d)
Gaucher’s disease is a genetic disease in which a fatty substance (lipid) accumulates in cells and certain organs. The disorder is characterized by bruising, fatigue, anemia, low blood platelets, and enlargement of the liver and spleen.
Q-5) A modification of leaf is
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(d)
Q-6) Organisms which display properties of both living and non-living are
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(d)
Q-7) In terms of the evolution of organisms, which one among the following is the most advanced?
(a)
(b)
(c)
(d)
Q-8) Consider the following statements : - Genetic code is the sequence of nucleotide bases in mRNA encoding the information for protein synthesis; which determines sequence of amino acids in proteins.
- The genetic code is triplet.
- Holley, Nirenberg and Khurana got Nobel Prize for decoding genetic information.
Which of the statement(s) given above is/are correct about genetic code?
(a)
(b)
(c)
(d)
Genetic code is the sequence of nucleotide bases in DNA encoding the information for protein synthesis.
Q-9) One of the following is a very unique feature of the mammalian body
(a)
(b)
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(d)
Q-10) The plant group that produces spores and embryo but lacks vascular tissues and seeds is
(a)
(b)
(c)
(d)
Bryophytes are the plants which produces spores and embryo but no vascular tissues are present, although primitive type of conducting tissues are present in the form of hadrome and leptome.