Answer / shalini

Sudden heritable change in dna or chromosomes is called
mutation.There are agents which cause mutations called
mutagens.Due to mutations many abnormalities will apeear in
nerw generations which may be useful or harmful.

Answer / jagadish

Mutation is the heritable changes occuring in DNA (in
the gene). Mutation takes place due to some changes
in nature and for existence3 of a species..

what is parkinson's gene?

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In cucumbers normal leaves (N) are dominant to curled leaves (n) and elongated fruit (L) is dominant to spherical fruit and these genes are linked on the same chromosome. If a pure-breeding normal-leaved, elongated fruit cucumber is crossed with a curled-leaved, spherical fruit cucumber, what will be the phenotype of the F1? the phenotypic ratio of the F2?

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What is the chemical composition of gene?

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what is junk DNA?

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Is biotechnology more dangerous to other gene transfer technologies breeding?

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What is the difference betwee bacteriostatic and bacteriocidal?

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what are introns and exons?

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Cystic fibrosis (CF) occurs with a frequency of about 1/2500 Caucasian newborns and is inherited as an autosomal recessive. A woman had an older sister die from complications of this disease. CF is not present among relatives of her husband. Both the woman and her husband have normal phenotypes. What is the chance this couple will have a CF child?

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Is Haemophilia a sex linked disease?how?

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what is mutation?

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Gene = cistron = intron + exon?

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Can DNA survive to intense heat?

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