Question

Define 1.Allele
2.Homologus and heterologus.​

Answer 1

Answer:

The two chromosomes of a pair are called homologous chromosomes which contain same genes located in the same places. A heterologous chromosome is a chromosome that contains different set of genes for a given trait. Homozygous means that the organism has two copies of the same allele for a gene.

Explanation:

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Answer 2

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1.Allele

⁌Allele⁍

An allele is one of a pair of genes that appear at a particular location on a particular chromosome and control the same characteristic, such as blood type or color blindness. Alleles are also called alleleomorphs. Your blood type is determined by the alleles you inherited from your parents.

» example of alleles for flower color in pea plants are the dominant purple allele, and the recessive white allele; for height they are the dominant tall allele and recessive short allele; for pea color, they are the dominant yellow allele and recessive green allele.

2.Homologus and heterologus.

⁌Homologous organs⁍

￫The organs having the same origin, anatomy but different functions are called homologous organs.

￫Homologous organs show divergent evolution.

»For example, forelimb of human, bat, cat.

⁌Heterologous (analogous) organs ⁍

￫The organs having the same functions but different in structure, origin and constituting parts are called analogous organs.

￫Heterologous organs shows convergent evolution.

»For example, the wings of bats and the wings of birds.

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