The function of the DNA helicase enzyme is to unwind and unzip DNA during replication. What may occur without the presence of this enzyme? A. There is no change to the activation energy required for the reaction

B. There is a decrease in the activation energy required for the reaction

C. There is an increase in the activation energy required for the reaction

D. There is a slight decrease followed by a slight increase in the activation energy required for the reaction

Explain why in any given geographical region, women tend to have lighter skins( by 3-4% on average) than men?

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.

Agroup of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cells? a. the cells would not be able to make food, but would be able to release energy from biomolecules. b. the cells would not be able to replicate dna, but would be able to break down waste. c. the cells would not be able to break down waste, but would be able to replicate dna. d. the cells would not be able to release energy from biomolecules, but would be able to make food.