Q441
Open questionThe ability of gene to express itself in an individual that is carrying it, is called
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Biology GK · all questionsGentics and Evoloution
Gentics and Evoloution
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Q442
Open questionThe Egyptian and the Babylonians gave the idea of cosmic evolution which includes.
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Q443
Open questionWhich of the following branches provides direct evidence of organic evolution?
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Q444
Open questionWhen autopolyploidy is combined with alloploidy, it results in
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Q445
Open questionLinked gene are present on
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Q446
Open questionThe characteristics of modern atmosphere include:
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Q447
Open questionDiversity of living organisms is due to
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Q448
Open questionGenes present on Y-chromosomes are called
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Q449
Open questionAssertion (A) In humans, female sex is determined by XX-chromosomes.
Reason (R) Male sex is determined by XY-chromosomes.
Reason (R) Male sex is determined by XY-chromosomes.
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Q450
Open questionWhich of the following are the chief sources of gene flow?
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Q451
Open questionFactors affecting strength of linkage include
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Q452
Open questionEarly atmosphere contained methane and other hydrocarbons they have been now replaced by
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Q453
Open questionArchaeopteryx, the connecting link between two groups of organisms, shows features of both
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Q454
Open questionWhich of the following evolved first on the primitive earth?
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Q455
Open questionAt present, scientists can determine the arragement or relative position of genes or DNA sequence on a chromosome. How does this knowledge benefit us?
1. It is possible to know the pedigree of livestock.
2. It is possible to understand the causes of all human diseases.
3. It is possible to develop disease resistant animal breeds.
Which of the statements given above is/are correct?
1. It is possible to know the pedigree of livestock.
2. It is possible to understand the causes of all human diseases.
3. It is possible to develop disease resistant animal breeds.
Which of the statements given above is/are correct?
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Q456
Open questionAll amino acids involved in protein synthesis have more than one codon except for
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Q457
Open questionLinkage and crossing over are
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Q458
Open questionThe coding segment of DNA is called in
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Q459
Open questionConsider the following statements.
1. Hugo de Vries gave the Mutation Theory to explain the mechanism of evolution.
2. Mutations are discontinuous variations and are also called Saltatory Variation.
3. Mutations are the ultimate source of organic variations.
Which of the statements given above is/are correct about mutation?
1. Hugo de Vries gave the Mutation Theory to explain the mechanism of evolution.
2. Mutations are discontinuous variations and are also called Saltatory Variation.
3. Mutations are the ultimate source of organic variations.
Which of the statements given above is/are correct about mutation?
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Q460
Open questionThe advantages of haploids in crop improvement include:
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