If a portion of strand of DNA bases reads 5’ AGCTAGCGT 3’, what would the sequence of bases on the complementary strand read?

A. 5’ UCGAUCGCA 3’

B. 3’ TCGATCGCA 5’

C. 5’ TCGUTCGCU 3’

D. 3’ AGCTAGCGT 5’

Answer Explanation:

The complimentary base pairing of DNA states that A pairs with T while C pairs with G. From the give sequence, the complimentary DNA strand will be 3’ TCGATCGCA 5’

Therefore, the Correct Answer is B.

Q #1: If a portion of strand of DNA bases reads 5’ AGCTAGCGT 3’, what would the sequence of bases on the complementary strand read?

A. 5’ UCGAUCGCA 3’

B. 3’ TCGATCGCA 5’

C. 5’ TCGUTCGCU 3’

D. 3’ AGCTAGCGT 5’

Answer Explanation

The complimentary base pairing of DNA states that A pairs with T while C pairs with G. From the give sequence, the complimentary DNA strand will be 3’ TCGATCGCA 5’
Q #2: Which of the following statements best supports the hypothesis that viruses can cause cancer?

A. Cellular DNA has sequences related to viral sequences

B. Cancerous and normal cells share genetic sequences

C. Genes that regulate cell division are found in some viruses

D. Viruses and cancer cells both replicate rapidly

Answer Explanation

Cancer is a condition caused by unregulated division of abnormal cells in parts of the body. For a virus to survive in an organism, it must enter into the host’s cell and take control of the cell’s most activities in order to be able to reproduce and replicate.

Some of the viruses achieve this by inserting their DNA or RNA to that of the host cell. This has a highly likelihood of affecting the DNA or RNA of a host (living organism) which alters their genes, which may lead to host cells becoming cancerous.

For this reason, viruses can cause cancer because the genes that regulate cell division in host cell are found in some viruses.
Q #3: Building blocks of proteins Which of the following organic molecules contain both an amine and carboxyl group?

A. Lipids

B. Proteins

C. Cellulose

D. Chitin

Answer Explanation

The basic building block of the protein is ammonia, which comprises of ammino group -NH2 and a carboxyl group, -COOH.

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If a portion of strand of DNA bases reads 5’ AGCTAGCGT 3’, what would the sequence of bases on the complementary strand read?

More Questions on TEAS 7 Science

Q #1: If a portion of strand of DNA bases reads 5’ AGCTAGCGT 3’, what would the sequence of bases on the complementary strand read?

Answer Explanation

Q #2: Which of the following statements best supports the hypothesis that viruses can cause cancer?

Answer Explanation

Q #3: Building blocks of proteins Which of the following organic molecules contain both an amine and carboxyl group?

Answer Explanation

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If a portion of strand of DNA bases reads 5&rsquo; AGCTAGCGT 3&rsquo;, what would the sequence of bases on the complementary strand read?

More Questions on TEAS 7 Science

Q #1: If a portion of strand of DNA bases reads 5&rsquo; AGCTAGCGT 3&rsquo;, what would the sequence of bases on the complementary strand read?

Answer Explanation

Q #2: Which of the following statements best supports the hypothesis that viruses can cause cancer?

Answer Explanation

Q #3: Building blocks of proteins Which of the following organic molecules contain both an amine and carboxyl group?

Answer Explanation

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TEAS 7 Exams (Q&A)

TEAS 7 Study Notes

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If a portion of strand of DNA bases reads 5’ AGCTAGCGT 3’, what would the sequence of bases on the complementary strand read?

Q #1: If a portion of strand of DNA bases reads 5’ AGCTAGCGT 3’, what would the sequence of bases on the complementary strand read?