Which form of natural selection in polygenictraits results in the creation of two distinct Phenotypes

A human female inherits A) 2 copies of every gene located on the X chromosome B) twice as many sex chromosomes as a human male inherits C) One copy of every gene located on the Y chromosome D) all of the same genes the human male inherits

Gives scientist an exact age of a rock fossil.

Processes and packages proteins and lipids in the cell

What regions would you expect to find the specialized cells of vascular tissue?

An increase in the concentrations of greenhouse gases in Earth's atmosphere would have which of these effects on temperature? A. a decrease in average temperatures on Earth's surface B. an increase in average temperatures on Earth's surface C.

These words were written by Robert Hooke in 1665. The pores or cells that Hooke described were really -

During the process of RNA transcription, which of the following steps is not included? Initiation Elongation Termination

If you push very hard on an object but it does not move, have you done work

How might an amino acid change at a site distant from the active site of the enzyme alter the enzyme's substrate specificity? A. By changing the enzyme's stability B. By changing the enzyme's location in the cell C.

Which of the following persons has the highest risk for diabetes, hypertension and heart disease? a. A man with a BMI = 29 and a waist circumference = 37 inches b. A woman with a BMI = 27 and a waist circumference = 36 inches. c.