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When a person inherits two of the recessive gene, one from each heterogenous parent.

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Q: When are recessive lethal genes deadly?
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Related questions

Do autosomes have lethal recessive genes?

Yes. Autosomes CAN have lethal recessive genes, but that does not mean they always contain recessive mutations.


Do dominant genes affect recessive genes?

The dominant genes take over, and then the recessive genes hide away


Which genes are dominant and which are recessive?

Dominant genes are always expressed in preference to recessive genes in cased where both genes are present.


What genes does a homozygous short pea plant always have?

Recessive genes


If an animal with 2 dominant genes for a trait has offspring with an animal with 2 recessive genes for same trait their offspring can only have what?

Their offspring will have dominant genes. However, if these offspring have offspring with an amimal with recessive genes, the recessive genes will show up.


Traits determined by recessive genes located on the x chromosomes are said to be?

Some traits are determined by recessive genes on the X chromosomes. Many times these are genetic disorders and are called recessive genes.


The weaker of two genes is called what?

dominant


Synonym for deadly?

Lethal


How do combinations of genes occur?

through dominate and recessive genes


Why aren't somatic mutations passed on to the next generation?

most genes mutations are recessive, and since most organisms have two of every genes, the normal genes will dominate the recessive genes.


Why do the recessive genes do not disappear from the population?

The reason for recessive genes not disappearing is because there is always a different gene that you can pass on through your offspring


How do dominant and recessive genes work?

explain how dominant genes work