Answer:
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The variety of all life forms on Earth.
That would be a hypothesis
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Answer:
A) One-half of their daughters will have normal color vision and brown eyes; 1/2 of their daughters will have normal color vision and blue eyes.
Explanation:
<u>The genotypes and phenotypes are</u>:
- BB or Bb= brown eyes
- bb= blue eyes
- XᴰXᴰ, XᴰXᵈ (women) or XᴰY (men)= normal vision
- XᵈXᵈ (women) or XᵈY (men) = color blind
A woman has blue eyes (bb) and normal color vision (she has an Xᴰ chromosome) but her father was color-blind, so the other X chromosome she has carries the recessive d allele. She has the genotype bb XᴰXᵈ.
The man has normal color vision (he is XᴰY) and has brown eyes, but his mother had blue eyes so he must have inherited a b allele from her and is therefore heterozygous Bb. His genotype is BbXᴰY.
The blue/brown eyes gene is autosomal and independent from the sex-linked color blindness gene.
The woman can produce the gametes b Xᴰ and b Xᵈ.
The man can produce the gametes B Xᴰ, b Xᴰ, B Y and bY.
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<u>The female daughters can have the following genotypes and phenotypes:</u>
- Bb XᴰXᴰ brown eyes, normal color vision
- Bb XᴰXᵈ brown eyes, normal color vision
- bb Xᴰ Xᴰ blue eyes, normal color vision
- bb Xᴰ Xᵈ blue eyes, normal color vision
The life cycle of the American lobster is an amazingly complex and diverse story that spans hundreds of millions of years. Lobsters can live on average 50 years old and the oldest recorded lobster was said to be at least 100 years old. American lobsters more commonly known as the Maine lobster,can weigh more than 40 pounds and grow up to 3 feet long. Maine lobsters live along the Atlantic coast of North America. Mating between lobsters is fairly complex. They go through a process called serial monogamy. A single dominant male mates with many different females. The females shed their hard exoskeleton making them vulnerable to predators. Then, the female wafts urine towards the male and sometimes a courtship dance is observed. The male and female then mate over a period of two weeks after which the female moves on. This process continues several times. Predators of the lobster include but are not limited to: Haddocks, Humans, Seals, etc. When shown in display shelves, lobsters tend to become cannibalistic so shop owners bind the claws of the lobster shut. Lobsters in general eat crabs, clams, mussels, starfish, smaller fish, and sometimes even other lobsters.
