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labwork [276]
3 years ago
15

In proteins, elements of secondary structure combine to form a(n)

Biology
1 answer:
Tatiana [17]3 years ago
3 0
In proteins, elements of secondary structure combine to form a motif
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The neural pathway represents the nerves that connect the sense organs to the brain what happens along the neural pathway when t
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The visual cortex in the brain processes the signals to create the perception of vision.

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Marfan syndrome is a dominant trait. A cross between a homozygous dominant and a heterozygote would produce what phenotypic rati
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The correct answer is- 4:0

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Marfan syndrome is a genetic problem which affects the connective tissue in the body. The trait for this disease is autosomal dominant which means even one abnormal copy of this gene in the offspring or individual is sufficient to cause this syndrome.

Let S is the allele that is dominant for this syndrome and s is recessive. So if a cross between homozygous dominant(SS) and heterozygous individual (Ss) occurs than all the offspring would have this syndrome.  

                                   S      s

                              S  SS   Ss

                              S  SS   Ss

Therefore all 4 offspring would have at least one dominant allele which is sufficient to cause this syndrome. So the phenotype ratio would be 4:0.

                       

3 0
3 years ago
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