It’s true. I don’t know what else to add
The last one. Makes only have one X chromosome.
In turn if he has a daughter she's most likely to be color blind too.
Answer:
a. 50%
Explanation:
<em>BRCA1 genes is a tumor supressor gene whose harmful mutation can cause hereditary breast ovarian cancer syndrome in both males and females. The BRCA actually stands for breast cancer.</em>
<em>Mutation in BRCA1 gene is heritable and every progeny of a carrier parent irrespective of the sex has a 50% chance of inheriting the trait from such parent, be it from the mother or the father.</em>
Hence, the correct option is a.
It originates in the inner core of the Earth.
As long as you are referring to the green plants aka producers of the food chain/web.
