Apoptosis is characterized by which of the following?
Programmed cell death
Correct! Apoptosis is a precise, genetically programmed cell death that is a normal part of development.
Non-programmed cell death
Incorrect
Accidental cell death
Incorrect.
Mitotic cell death
Incorrect
Which of the following statements is TRUE about meiosis and mitosis?
In mitotic cell division the parent cell type is 2n, while in meiosis the parent cell type is 4n.
Incorrect
In mitotic cell division there are 4 daughter cells, while in meiosis there are 2 daughter cells.
Incorrect
In meiosis the daughter cells are unique from the parent cells and to each other, while in mitosis the daughter cells are identical to the parent cells and to each other.
Correct! In meiosis, the final product is 2 non-identical daughter cells because of crossing over or recombination that occurs in meiosis 1. In mitosis, the final product is 4 daughter cells that are genetically identical to the parent cell. There is no crossing over in mitosis (and no reduction division).
There are 2 cell divisions in mitosis and only 1 in meiosis.
Incorrect
Which of the following statements is TRUE about meiosis and mutations?
There is no association between paternal age and genetic issues in offspring.
Incorrect
Advanced maternal age is associated with dominant single gene disorders.
Incorrect
Advanced paternal age is associated with chromosomal aneuploidies.
Incorrect
Rapidly dividing sperm cells may increase the risk of mistakes in DNA replication.
Correct! Sperm cells divide every 16 days from puberty on and offer increased opportunity for mistakes in DNA replication.