<span>Answer:
If you were expecting a ratio of 9:3:3:1 you would have to make sure that you had enough offsrpring to count to give yourself a chance of getting that ratio. If you only had 8 offspring you would never get the ratio. Remember genetic ratios are probabilities of what to expect and you need a large enough sample to ensure accuracy.</span>
D. Mitochondria and Chloroplast
i'm sorry if it's wrong but that should be the right answer
Answer:
Stimulants refer to the drugs, which momentarily entices to better both the mental and physical activity of a human being. Cocaine is a strong stimulant, which is considered as a recreational drug.
The pathway of cocaine administration influences how briskly the stimulant gets into the brain, and how powerful the rush will be as well as how long the high will endure. For example, smoking gets the components to the brain the most rapid, however, it high lasts for shorter duration.
The options are incomplete and have been listed incorrectly. Complete question has been attached.
Answer:
C) Dd and Dd
Explanation:
It is given that deafness is a recessive trait which means that Dr. Smith has genotype dd since a recessive trait can only be expressed when both the alleles in genotype are recessive. However, his parents are normal. So his parents can have DD or Dd genotype. Dr. Smith has obtained one recessive d allele from his father and other recessive d allele from his mother. Thus, the parents should have Dd genotype and the correct option is c.