Question

In pea plants, smooth seeds (S) are dominant over wrinkled seeds (s). What is the expected genotypic ratio in the offspring of a cross between two heterozygous individuals? (1 point)
• 1Ss: 1ss
3SS: 1ss
1SS: 1Ss
1SS: 2Ss: 1ss

Which of the following best describes a chromosomal translocation mutation? (1 point)
• A mutation where a segment of a chromosome is duplicated.
• A mutation where two chromosomes break and exchange segments.
• A mutation where a chromosome loses a segment during cell division.
A mutation where a nucleotide base is substituted with another

What is chromatin primarily composed of? (1 point)
DNA and lipids
RNA and proteins
Proteins and carbohydrates
• DNA and proteins

Answer 1

1) 1SS : 2Ss : 1ss

2) A mutation where two chromosomes break and exchange segments.

3) DNA and proteins