Question

question 10
nucleic acids include rna and dna. the monomers of these molecules are

o a monosaccharides
o b amino acids
o c fatty acids
o d nucleotides

question 11
mustard gas removes guanine from dna. for developing embryos, exposure to mustard gas can cause serious deformities because guanine
o a is one of the four nitrogenous bases in dna
o b directly causes mutations in dna.
o c produces energy for dna replication.
o d stores the building blocks of proteins.

Explanation:

• Question 10: Nucleic acids (DNA and RNA) are polymers. Their monomers are nucleotides. Monosaccharides are the monomers of carbohydrates, amino acids are the monomers of proteins, and fatty acids are part of lipids (when combined with glycerol, for example, to form triglycerides).
• Question 11: Guanine is one of the four nitrogenous bases in DNA (the others are adenine, cytosine, and thymine). DNA is the genetic material. Altering its nitrogenous bases (like removing guanine) can disrupt the genetic code, which is crucial for proper embryonic development. Guanine does not directly cause mutations (mutations are changes in the DNA sequence, and mustard gas is the mutagen here), it does not produce energy for DNA replication (ATP is involved in energy - related processes in cells), and it does not store the building blocks of proteins (that is the role of DNA in terms of coding for proteins, but guanine alone is just a base, not a storage unit for amino acids).

Answer:

Question 10: d. nucleotides
Question 11: a. is one of the four nitrogenous bases in DNA