1. a man and woman are both affected with the brca1 gene for familial breast cancer, a disease that has 80% penetrance in all in
dividuals who carry the allele. they are both heterozygotes for the disease-causing mutation. what is the probability that they will have a phenotypically normal child?
The probability to have a phenotypically normal child will be 40% because parents are both heterozygotes for this disease-causing mutation that has 80% penetrance.
<h3>What is genetic penetrance?</h3>
The expression genetic penetrance refers to the chances of expressing a given phenotype which may be associated with both genetic and environmental factors.
In conclusion, The probability to have a phenotypically normal child will be 40% because parents are both heterozygotes for this disease-causing mutation that has 80% penetrance.
Homeostasis is the term use to describe the internal stability needed for survival of an organism, including humans and animals while equilibrium is narrow to specific mechanisms.
Every ecosystem is made up of a variety of living and nonliving things. The living things within an ecosystem depend on each other to obtain their energy.
14. compound 15. the concentration cannot be increased. 16. heterogenous mixtures 17. chocolate chip cookies 18. vegetable soup 19. a mixture is a pure substance a compound is not 20. Tastes sour
