In dogs, there is a hereditary type of deafness caused by a recessive gene. Two heterozygous dogs mated, they both carry the gene for deafness but have normal hearing. Using the Punnett Square below, answer the following questions.

1. What are the possible genotypes? Select all that apply based on the Punnett Square above. *

DD

Dd

dd

2. What is the genotype for offspring #2?*

DD

Dd

dd

1.Since both of the parents are heterozygous the offspring can have all three genotype possiblities: DD Dd and dd

2.The genotype of offspring is the combination of the alleles D and d:Dd

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

no i don't feel that humans have oversubscribed some medications