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pshichka [43]
3 years ago
9

How many recessive alleles I need for an expression of a recessive phenotype

Biology
1 answer:
Arisa [49]3 years ago
7 0
You need two recessive alleles (xx). If even one dominant allele is present, the dominant trait will show (Xx or XX will both result in the dominant trait showing). That’s why they’re called dominant traits, because they overpower the recessive traits. In order for a recessive trait to show you must have two recessive alleles.
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3 0
3 years ago
A pea plant with round seeds has the genotype rr. if you cross this plant with a wrinkled-seed plant, genotype rr, what is the p
Lapatulllka [165]
I think you wrote this wrong? Is it not round rr vs wrinkled RR?? I'll answer it with that assumption:

You are crossing a rr with an RR:
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If you are crossing rr with an Rr (so a heterozygote wrinkled):
50% will be Rr (wrinkled)
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See my picture for the Punnett Squares for both answers!

3 0
3 years ago
Whats the answer ugh
Strike441 [17]

Answer:

Phalanges: long bones

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5 0
3 years ago
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Which of these requires a host cell to copy its genetic material and protein coat?
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The virus' DNA becomes a part of the host cell's DNA, and every time the host cell copies and divides, it also copies viral DNA. The viral DNA may remain inactive (a provirus) for a long time, but it can become active when it frees itself from the host's chromosome, which triggers the lytic cycle.

I forget which one is the virus' DNA


3 0
4 years ago
Read 2 more answers
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