Malaria cannot survive well within “partially defective” redblood cells. Thus, heterozygous tend to survive better than eitherof the homozygous conditions. If 9% of a given population is bornwith the severe form of sickle-cell anemia, what percentage of thepopulation will be more resistant to malaria because they areheterozygous for the sickle-cell […]

I. A double strand of DNA contains the following sequence. 5′ AGTAGGTTTACACTGCTGCCCCACTATCGTATCTTCCCTGAGTGAGCATTG 3′3′ TCATCCAAATGTGACGACGGGGTGATAGCATAGAAGGGACTCACTCGTAAC 5′ a. Write the 6 reading frames and group nucleotides in codons, i.e. GTACGT= GTA CGT. b. From the 6 reading frames, is there an open reading frame (ORF)? If yes, which reading frame? Please indicate […]

When exposed to light, plant cells show a net absorption of CO2 and net production of O2. In the dark, they show net production of CO2 and net absorption of O2. a. What biochemical process is responsible for the plants absorption of O2 and net production of CO2? b. Does […]

Scientists have known for centuries that living things change over time. Drag word(s) below to fill in the blank(s) in the passage.The theory of biological evolution is the unifying- (SELECT A LABEL) for the biological sciences. The mechanism for biological evolution is called- (SELECT A LABEL) , which leads to […]