PSYC 140 Developmental lifespan Psychology Module 6 Exam 2023- Portage

Coorrrecctt!Thymine Guanine Cytosine Uracil Both A and B In RNA, guanine always pairs with .

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Question 1 Question 2 0 / 3 pts PSYC 140 Developmental (lifespan) Psychology Module 6 Exam 2023- Portage Learning

Due No due date Points 100 Questions 30 Time Limit 60 Minutes Requires Respondus LockDown Browser

Attempt History Attempt Time Score LATEST Attempt 1 37 minutes 69.5 out of 100

The repeating units, or monomers, that are linked together to form nucleic acids are known as .

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Nucleosides

Correct Answer

Nucleotide

Genes 1 / 3

Coorrrecctt!Ion-dipole bonds Ionic bonds Covalent bonds Hydrogen covalent bonds Hydrogen bonds The B-form helix of DNA is stabilized mainly by .

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Coorrrecctt!Xylose Ribitol 2-deoxyribose Arabinose Ribose Which of the following pentose sugars is a constituent of DNA?

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Pyrimidines have ring(s), (each) containing nitrogen(s), whereas purines have ring(s), (each) containing nitrogen(s).

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Question 5

Purines Codons 2 / 3

Identify the base guanine from among the following structures.A.B.C.

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Coorrrecctt!

1; 1; 1; 1

1; 2; 2; 2

2; 2; 1; 2

2; 1; 1; 2

2; 2; 1; 1

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