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Prokaryotic cells are smaller than eukaryotic cells. What is a plausible explanation? 

Which aspects of natural selection are illustrated by the figure below? Check all that apply. beak depth graph.jpg

A human cell has a mutation in the gene that encodes the enzyme that generates lactate from pyruvate, rendering that enzyme completely non-functional. Assuming that there is ample glucose present, how would this cell generate energy in the presence of oxygen?

In the fruit fly Drosophila, there is a dominant gene for normal wings and its recessive allele for vestigial wings. At another gene locus on the same chromosome, there is a dominant gene for red eyes and its recessive allele for purple eyes. A male that was heterozygous at both gene loci was mated with a female that was homozygous for both recessive alleles and the following results were observed among the offspring: Normal wings and red eyes – 420              Vestigial wings and purple eyes – 430 Normal wings and purple eyes – 70          Vestigial wings and red eyes – 80 According to these data, what is the distance, in centimorgans (cM), between these 2 gene loci? 

Do you have a job outside of school?  Where  do you work?  How many hours do you work per week?  

Students in this course will be using Honorlock for all quizzes, tests, and the final exam, which requires a webcam and mic. 

The PCR technique requires a DNA polymerase from an organism that can endure high heat, such as Thermus aquaticus. Which step of the protocol makes the heat-stability most necessary?

Cystic fibrosis is an inherited disease that affects breathing and digestion. It is caused by a single recessive allele. Two parents without cystic fibrosis have a child who has cystic fibrosis. What are the genotypes of the parents?

A technique used to amplify a desired piece of DNA is

During S phase of the cell cycle: