During the process of DNA replication, the nitrogen bases pair in a specific way. Which of the following accurately depicts the synthesized DNA during replication?

a. A-A-A-T-C-G-T-T-T-A-G-C

b. T-C-C-A-G-A-A -G-G-U-C-T

c. U-G-A-C-C-T-A-C-T-G-G-A

d. C-C-T-U-A-G-G-G-A-T-U-C

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.

Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes