In gel electrophoresis why does the DNA move towards the bottom of the wall of gel?

A) DNA is negatively charged

B) DNA is positively charged

C) DNA is extremely heavy

D) DNA is less dense than air

Antigen receptor diversity within a population increases because

Where do the reactions of the citric acid cycle occur in eukaryotic cells?

Sarah learned that the steps of transcription and translation are similar to baking a cake from a recipe. The cell's genome is like a cookbook, with step-by-step directions.

Would it be possible for something to initially be regarded as pseudoscience and then later be supported by science?

Which statements best describe the first stage of cellular respiration? Check all that apply. 1. The stage happens in cytoplasm. 2. The stage happens in mitochondria. 3. Oxygen combines with small molecules. 4. Glucose is broken down. 5.

Which scientist disproved the ideas of spontaneous generation

Many fault lines are obvious at the surface. How can the epicenter of an earthquake be located miles away from the fault line?

The harmless scarlet kingsnake has scales in a coloration and pattern resembling the scales of the dangerous coral snake. The scarlet kingsnake is using to avoid predation

Charles Darwin came up with the system we use to name and classify organisms. True False

8. Cystic fibrosis is caused by a recessive allele. The frequency of this allele is 0.1 in a population of 2,500. a. What is the frequency of the dominant allele? b. How many people in this population will have cystic fibrosis? c.