An astronomer would most likely use the Doppler effect to measure the color of a star.

measure the parallax of a star.
c

measure the brightness of a star.

measure the shift in the emission spectrum of a star.

Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.

Identify any four organelles that should be present in the eukaryotic organism and describe the function of each organelle

Give an example of a trait that is controlled by more than one gene.