Which of the Following Is NOT an Example of a Hydrogen

question 67

Multiple Choice

Which of the following is NOT an example of a hydrogen bond?

• A) the bonds formed between H₂O molecules
• B) the peptide bonds between amino acids
• C) the bonds formed between base pairs of DNA and RNA nucleotides
• D) the bonds formed along the polypeptide backbone of a protein to form its secondary structure, the alpha helixes and beta pleated sheets.

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Definitions:

Umbilical Cord

The flexible cord-like structure connecting a fetus to the placenta, delivering nutrients and oxygen while removing waste.

Chorion

The outermost membrane surrounding an embryo in mammals, birds, and reptiles, contributing to the formation of the placenta in placental mammals.

Amnion

A thin membrane forming a closed sac around the embryo in birds, reptiles, and mammals.

Yolk Sac

An extra-embryonic membrane that provides food in the form of stored yolk to the developing embryo in eggs and early vertebrates.