Asked by Rachel White on Jun 19, 2024
Verified
What is one of the very important differences between mitosis and meiosis?
A) Chromosomes align midway between spindle poles only in meiosis.
B) Homologous chromosomes pair up and exchange genetic material only in meiosis.
C) DNA is replicated only before mitosis.
D) Sister chromatids separate only in meiosis.
E) Interphase occurs only before mitosis.
Mitosis
A process in cell division where a single cell divides to produce two identical daughter cells, ensuring the same number of chromosomes in each.
Genetic Material
Molecules responsible for inheritance and variation of organisms, primarily DNA or RNA.
- Analyze and differentiate between mitosis and meiosis, including their functions in the lifecycle of organisms.
Verified Answer
BI
Brian IglesiasJun 22, 2024
Final Answer :
B
Explanation :
Homologous chromosomes pair up and exchange genetic material only in meiosis. This is one of the key differences between mitosis and meiosis. In mitosis, the chromosomes do not pair up or exchange genetic material, as they are already replicated copies of each other. In meiosis, however, the homologous (similar) chromosomes pair up and undergo recombination (the exchange of genetic material) before separating into daughter cells.
Learning Objectives
- Analyze and differentiate between mitosis and meiosis, including their functions in the lifecycle of organisms.