Under a microscope, you can see that a plant cell has only half the usual number of chromosomes. What stage of the plant's life-cycle are you witnessing?

How is the information encoded in the rfp gene expressed as a trait? Be sure to use what you have previously learned about gene expression and the relationship between DNA, RNA, protein, and traits

Do all specimen have the same number of chromosomes

DNA is different from RNA in that A. RNA is made up five bases, whereas DNA is made up of four. B. in general, RNA molecules are longer than DNA molecules. C. RNA contains an additional oxygen atom on the ribose sugar. D.

Did the detergents containing enzymes work better at removing stains than those containing no enzyme? Why or why not?

What was the variable in Redi's experiment? meat sealed in jars that didn't have contact with air a swan neck flask that prevented air from getting in uncovered meat that had contact with air a straight neck flask to allow air to get in

when you are forming memories the neurons and the connections between them strengthen. This is called:

Which level of organization comes between a cell and an organ? organ system tissue organelle organism

A geneticist collected data of a population of mice. Of the 50 mice, 12 were homozygous black (BB), 24 were heterozygous black (Bb), and 14 were brown (bb). What are the allele frequencies for the (B) and (b) alleles in this population? A. B = 0.

A teacher taps on a hardboiled egg until cracks appear on the surface. She gently presses the egg between her fingers and thumb. The students observe some changes in the egg shell, a few of which are presented in the table.

Which human body systems interact to control oxygen and carbon dioxide levels in the blood?