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3 years ago

A virus

Biology

2 answers:

barxatty [35]3 years ago

7 0

Answer:

The answer is C

Explanation:

I took the test

irga5000 [103]3 years ago

4 0

Answer:

The correct option is C. A virus contains RNA or DNA in a protein coat.

Explanation:

Viruses can be described as tiny particles which are able to incorporate their genetic material into a host. Many viruses can be destructive to the host cells.

The structure of a virus includes DNA or RNA which is enclosed in a structure known as an envelope or capsid. The envelope or capsid is made up of proteins. Some viruses also have a tail.

The capsid of a virus usually remains outside the host cell and it injects its viral genome into the host cell. The DNA or RNA o the virus then incorporates in the host cell.

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Assume that a polygenic character in Drosophila is produce through the activity of five genes, each with two alleles. Two indivi

777dan777 [17]

Answer:

$243$

Explanation:

Let us assume the genotype of individual with five genes is AaBbCcDdEe

If we look at the simple mono-hybrid cross between two gene pairs let us say Aa and Aa, the following genotypes will be produced

Aa * Aa

AA, Aa, Aa, aa

So total three different type of genotypes will be produced i.e AA, Aa, and aa

Like wise cross between Bb and Bb will produce BB, Bb, bb

Product of Cc and Cc will produce CC, Cc and cc

Product of Dd and Dd will produce DD, Dd, dd

Product of Ee and Ee will produce EE, Ee, ee

So in total there will be 5 such groups which will assort independently/

Thus, the probability will be

$3 * 3* 3*3 *3\\= 3^5\\= 243$

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larisa86 [58]

Answer:

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