Keystone Biology Module 2 Part 2

Front

What is mutualism?

Back

A symbiotic relationship where both species benefit, such as white-winged doves and saguaro cacti.

Front

What are chromosomes?

Back

Structures that contain the genes of an organism.

Front

What is natural selection?

Back

The process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is a frame-shift mutation?

Back

A genetic mutation caused by insertions or deletions of nucleotides that alters the reading frame of the gene.

Front

What is a testable hypothesis?

Back

A statement that can be tested through experimentation, such as 'As temperature increases, the rate of cell division increases.'

Front

What is the role of alleles in genetics?

Back

Alleles are different forms of a gene that determine specific traits.

Front

What is the significance of nitrogenous bases in DNA?

Back

Nitrogenous bases (adenine, thymine, cytosine, guanine) pair to form the rungs of the DNA ladder, encoding genetic information.

Front

What is the difference between prokaryotes and eukaryotes?

Back

Prokaryotes are single-celled organisms without a nucleus, while eukaryotes have a nucleus and are often multicellular.

Front

What is the function of genes?

Back

Genes are segments of DNA that code for proteins, determining traits and functions in an organism.

Front

What is the impact of environmental changes on species?

Back

Environmental changes can lead to natural selection, affecting which traits are advantageous for survival.