Among a species of butterflies, the color blue (B) is a dominant trait. Yellow color (b) is a recessive trait. If a pure blue butterfly (BB) mates with a pure yellow (bb), what will the offspring look like? A: A) They will all be blue. B) They will all be yellow. C) Half will be blue and half will be yellow. D) About 75% will be blue and 25% will be yellow.

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Q: In Mexican hairless dogs, a double dose of a dominant allele may be lethal. What phenotype should…

A: The condition where two identical genes are present in an individual for a particular character, Is…

Q: A monohybrid cross is a cross with: OA) Two individuals heterozygotic at a single gene locus B) One…

A: A Monohybrid cross is a cross between two organisms with one contrasting trait that is regulated by…

Q: Red-green color blindness is a sex-linked recessive trait in humans. Two people with normal color…

A: The red green color blindness trait is encoded by the gene present on X chromosome.

Q: Consider this hypothetical example. Bluegills can either have green eyes or brown eyes. The trait is…

A:

Q: Skin colour in dolphins is determined by a single gene showing incomplete dominance giving rise to 3…

A: A cross between the two F1 hybrids shows the heterozygous for a single trait exhibiting incomplete…

Q: About 7% of men in a population are red-green colour blind due to a sex-linked recessive gene.…

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Q: 3) Eye color in chimpanzees is coded for by one gene with two alleles, “A" and “a". “A" is dominant…

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Q: a punnet square, what is represented by the inside boxes? a) The gametes of the parents b) Possible…

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Q: Heterozygous is when...    Choose the right answer: a.) the alleles are different b.) the alleles…

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Q: A tall true breeding plant was crossed with a dwarf true breeding plant. Tallis a dominant…

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Q: The production of pink flowered plants from a cross between a red flowered plant and a white…

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Q: 6)Heterozygote is a)an individual who has two copies of the same allele for a

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Q: 11) In the Hardy-Weinberg equation, which term refers to the heterozygous genotype?   A) 2pq   B)…

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Q: 7) In some populations of grasses, the ability to grow in soil sprayed with a certain herbicide is a…

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Q: 10)If both parents have the dominant phenotype, which genotypes are possible for their offspring?…

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Q: In a dihybrid cross AA bb x aa BB, what proportion of the F2 offspring is expected to be…

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Q: In fruit flies, yellow body is a sex linked recessive allele. The dominant allele is dark bodied. If…

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Q: Mendel's pea plants were a good choice for studying heredity, because:

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A:

Q: There are two alleles for the height gene, T for tall and t for short. One parent is a heterozygote,…

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Q: ele is dominant (purple or yellow)? How do you know? rple, because purple is always a dominant color…

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Q: Assume that right-handedness (R) is genetically dominant over lefthandedness (r) in humans, and that…

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Q: Recessive allele is a)the least common allele b)any variant of a gene c)the most common allele…

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Q: 32) Which term correctly describes the phenomenon that is taking place when a single gene influences…

A: B.Pleiotropy

Genetic Variation

Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.

Quantitative Genetics

Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.