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1. s...
Biology, 07.01.2020 17:31 evanwall91
Nvm no ones so im gona ! ! plz plz plz plz plz plz plz plz me like i will mark the !
1. suppose that a dominant allele (p) codes for a polka-dot tail and a recessive allele (p) codes for a solid colored tail. in addition, suppose that a dominant allele (l) codes for long eyelashes and a recessive allele (l) codes for short eyelashes. if two individuals heterozygous for both traits (tail color and eyelash length) mate, what's the probability of the phenotypic combinations of the offspring?
a. 9: 3: 3: 1 ratio (9 polka-dot tails and long eyelashes, 3 polka-dot tails and short eyelashes, 3 solid tails and long eyelashes, 1 solid tail and short eyelash)
b. 1: 1 ratio (half are polka-dot tails and long eyelashes; half are solid tails and short eyelashes)
c. 1: 1 ratio (half are polka-dot tails and short eyelashes; half are solid tails and long eyelashes)
d. 9: 3: 3: 1 ratio (9 polka-dot tails and short eyelashes, 3 polka-dot tails and long eyelashes, 3 solid tails and short eyelashes, 1 solid tail and long eyelash)
2. which of the following is correct about the hershey-chase experiment?
a. they discovered that the protein from the virus entered the cell, while the dna stayed behind.
b. they infected viruses with bacterial cells.
c. they determined that infected bacteria contained tags from the virus’s dna.
d. they found no way for hereditary material to be transferred between viruses and bacteria.
3. suppose that a dominant allele (p) codes for a polka-dot tail and a recessive allele (p) codes for a solid colored tail. if two heterozygous individuals with polka-dot tails mate, what's the probability of the phenotype and genotype combinations of the offspring?
a. 75 percent chance of a polka-dot tail and 25 percent chance of a solid colored tail (25 percent pp; 50 percent pp; 25 percent pp)
b. 75 percent chance of a polka-dot tail and 25 percent chance of a solid colored tail (75 percent pp; 25 percent pp)
c. 50 percent chance of a polka-dot tail and 50 percent chance of a solid colored tail (50 percent pp; 50 percent pp)
d. 25 percent chance of a polka-dot tail and 75 percent chance of a solid colored tail (25 percent pp; 50 percent pp; 25 percent pp)
Answers: 3
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