Yes, Jan should undergo genetic sequencing.BRCA1/BRCA2 are the causes of 20-25% of all hereditary breast cancers, so if Jan's mother and sister both have breast cancer, then the odds are that she has BRCA1 as well.
Answer:
b
Explanation:
It is a fossil of sea shells
Answer:
Yes.
Explanation:
Yes they would because plants need water (rain could be of use) and the energy from the sun (photosynthesis) to survive, without any of that, the plant would start to die.
The parent may have had an recessive gene that didn't show up in them but showed up in the the offspring!!
Two species of sea urchins live practically side-by-side in sandy bottoms. The two species appear to have the same diet: drift seaweeds and other bits of organic matter. They can live in the same environment without competing.
As it compels them to live in the same environmental surroundings so the characteristics of living nature also get developed as their current following situation that's helping them to get the same food & habitat.
