An organism has 2 chromosomes in its cells (the diploid number is 2). Calculate the number of chromosomes in a cell in the 5th generation if egg and sperm cells were diploid.

What are charcteristics of lithosphere?

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.) chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.

If a dna molecule has 100 nucleotides and 22 of them are cytosine, how many thymines does it have?