Comparing DNA Sequences from Living Taxa and Calibrating Their Rates

question 23

Short Answer

Comparing DNA sequences from living taxa and calibrating their rates of change with at least one well-dated fossil allows scientists to create time-calibrated trees with minimum and maximum age estimates for all branch points.Such studies are called ________ [two words] studies.

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Definitions:

Production

The process of creating, manufacturing, or generating goods and services.

Artificial Insemination

A fertility treatment that involves directly inserting sperm into a woman's womb to facilitate fertilization without sexual intercourse.

In Vitro Fertilization

In vitro fertilization is a medical procedure in which an egg is fertilized by sperm outside of the body, under artificial conditions, often used to overcome fertility issues.

Sperm

Male reproductive cells that carry genetic information and are capable of fertilizing an egg.