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Dmitry_Shevchenko [17]
3 years ago
10

Describe the three main differences between rna and dna

Biology
1 answer:
katovenus [111]3 years ago
6 0

The sugar in RNA is ribose, not deoxyribose which is in DNA. Unlike DNA, RNA is usually single stranded where DNA is double stranded. RNA also has uracil instead of thymine.

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Red-green color blindness is an X-linked recessive disorder. A woman with normal vision whose father was colorblind has children
andrey2020 [161]

Answer:

The probability of their first child being colourblind is 1/4

Explanation:

Red-green color blindness is an X-linked recessive disorder.

A woman with normal vision whose father was colorblind has children with a man with normal color vision.

In an X-linked condition, the males only need to get one copy of the affected allele to have the condition and this copy is also inherited by a female offspring.

So in this case, the woman receives the affected recessive allele copy from her dad but since she still has normal vision, she received the normal copy from her mom so she is heterozygote for the trait.

The woman with normal color (XRXr) has a father who is color blind (XrY) has children with a normal man (XRY)

The cross would be

XRXr x XRY

XR Xr

XR XRXR XRXr

Y XRY XrY

Probably of having an affected child is 1/4. Thus, the probability of their first child being colourblind is 1/4

8 0
3 years ago
PATIENT: Tom Smith DATE OF SERVICE: 9/10/XX
MArishka [77]

The 2020 ICD-10-CM diagnosis code for cocaine abuse is F14.10

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ICD code F01-F99 refers to mental, behavioral, and neuro-developmental disorders.

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Cocaine is an addictive illicit drug and abuse effect the body and causes both physical and psychological symptoms.

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8 0
4 years ago
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