Biology

What is the definition of an insertion mutation? A mutation involving the addition of one or more nucleotide pairs to a gene. A mutation that changes a single nucleotide in a gene. A mutation that results in the deletion of nucleotide pairs from a gene. A mutation that causes a gene to be duplicated. 2. Describe the significance of being heterozygous in the context of genetic variation. Being heterozygous ensures that an organism will express a dominant trait. Being heterozygous has no impact ...

5.MIT Biology Exam 2025 | 150 Questions and Answers 1. Describe the role of ribosomes in the rough endoplasmic reticulum. Ribosomes on the rough ER detoxify harmful substances in the cell. Ribosomes on the rough ER are involved in the replication of DNA. Ribosomes on the rough ER produce lipids for energy storage. Ribosomes on the rough ER are responsible for synthesizing proteins that are either secreted from the cell or incorporated into the cell membrane. 2. In an experiment, a researcher...