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Can both strands of DNA act as template? Can both DNA of homologous chromosomes

ID: 186671 • Letter: C

Question

Can both strands of DNA act as template?

Can both DNA of homologous chromosomes serve as template?

How can you predict the sequence of proteins based on DNA sequences?

In terms of transcription and translation, how can we predict if an allele will cause a dominant or a recessive condition, a loss-of-function or gain-of-function mutation?

If all cells carry the same DNA information, how is it that different cells may carry out different functions or that particular traits be expressed at different times of an organisms lifetime?

What are loss-of-function and gain-of-function mutations?

Explanation / Answer

This is why, inspite of all the cells in an organism having identical DNA, it is still possible for the cells to differentiate into tissues and organs sprecific in functions.

6. Loss of Function Mutation : The mutation because of which gene product results in having little or no function is termed as loss of function mutation. It is also termed as inactivating mutations.

Gain of Function Mutation : This is the type of mutation in which altered gene expression possesses a new molecular function or a new pattern of gene expression.