A scientific model can be used to test a hypothesis.
Answer;
C. His mother carried at least one allele for that trait
Explanation;
-Men have a single allele of each gene on the X chromosome, inherited from their mother, and a single allele of each gene on the Y chromosome, from their father.
-A sex-linked trait is a trait that is controlled by a gene or an allele located on the sex chromosome.
-X-linked traits are maternally inherited from carrier mothers or from an affected father. Each son born to a carrier mother has a 50% probability of inheriting the X-chromosome carrying the mutant allele.
The hormones send signal to the mammary glands in the body for it to start to produce milk to feed the baby. However there are times humans rely on to cow's milk. There are differences though between the two.Human milk has more whey protein compared to the cow yet they has less casein which is another type of protein compared to cow's milk. For carbohydrates, human milk is higher than the cow's milk. For the fatty acid, the cow's milk contains more unsaturated fat.
Answer:
In plants and algae, which developed much later, photosynthesis occurs in a specialized intracellular organelle—the chloroplast. Chloroplasts perform photosynthesis during the daylight hours. The immediate products of photosynthesis, NADPH and ATP, are used by the photosynthetic cells to produce many organic molecules.
