During normal meiosis I, a parent cell that has four chromosomes will produce two daughter cells. How many chromosomes will each contain after round 1 of meiosis?

Which prevent errors in dna replication? a. helicase enzyme checks the dna for errors. b. each base can attach to only one other type of base. c. ribosome enzymes prevent errors from happening. d. dna contains no complementary base pairs.

Aheterozygous normal male marries a woman with a sickle cell anemia. give the genotypes and possible phenotypes of the offspring

Describe the relationship and movement between temperature and density in a convection cell. make sure you identify the direction of travel