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Biology Basics Quiz

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What unifies biology as a single, coherent field?

The ability to regulate internal environments

The presence of cells processing hereditary information (correct)

The diversity of life forms studied

The use of the scientific method

What is a major theme in biology that explains the unity and diversity of life?

Energy processing

Cellular organization

Regulation of internal environments

Evolution (correct)

What allows organisms to move, grow, and reproduce?

Regulation of internal environments

Cellular organization

Energy processing (correct)

Hereditary information

At what levels of organization do biologists study life?

From molecular biology to the evolution of populations (B) Signup and view all the answers

What has immensely diverse forms of life, including prokaryotic and eukaryotic organisms?

Life on Earth (D) Signup and view all the answers

What are Y-DNA haplogroups defined by?

Mutations in the non-recombining portions of the Y chromosome (A) Signup and view all the answers

What do Y-DNA haplogroups represent?

Major branches of the Y-chromosome phylogenetic tree (C) Signup and view all the answers

How many mutations does the human Y-chromosome accumulate per generation?

Roughly two mutations (A) Signup and view all the answers

When is Y-chromosomal Adam estimated to have lived?

Roughly 236,000 years ago in Africa (C) Signup and view all the answers

How can Y-DNA haplogroups be defined into subclades?

By a terminal SNP, the SNP furthest down in the Y-chromosome phylogenetic tree. (B) Signup and view all the answers