Fall 2024 Semester Study Guide

Front

Why do stomach cells function differently than skin cells?

Back

They use different genes in the DNA.

Front

Identify the molecules in the following order: 1 - ?, 2 - ?, 3 - ?

Back

1 - tRNA, 2 - ribosome, 3 - mRNA.

Front

What is Cell differentiation?

Back

The process of cells becoming specialized for specific functions.

Front

Why do cells differentiate to perform different functions?

Back

Different genes are turned on or off inside that cell.

Front

What is the role of mRNA in protein synthesis?

Back

mRNA carries the genetic information from DNA to the ribosome.

Front

What is the function of tRNA in translation?

Back

tRNA brings the appropriate amino acids to the ribosome during protein synthesis.

Front

What is crossing-over in meiosis?

Back

Crossing-over is the exchange of genetic material between homologous chromosomes, increasing genetic diversity.

Front

Define meiosis.

Back

Meiosis is a type of cell division that reduces the chromosome number by half, producing four haploid cells.

Front

What is the significance of genetic variety?

Back

Genetic variety is important for evolution and adaptation in changing environments.

Front

What are stem cells?

Back

Stem cells are undifferentiated cells that have the potential to develop into different cell types.