Biology Answers

1.   Give two factors that may affect a good gram staining technique output. Provide an explanation of how these factors influence the result. 

PART 1: Read and analyze the following genetic problem. Answer what is being asked. Show complete solution (Genotypes of P, Punnet Square and GR, PR). (10 points)

Criteria:

Genotypes of P = 2 pts 

Punnet Square = 4 pts 

GR, PR = 4 pts

TOTAL = 10 pts

• In garden peas, green pod color is dominant over yellow pods. Also, round seed shape is dominant over wrinkled seed. Cross-fertilization was done between a pea that is homozygous dominant for pod color with heterozygous round shape and another pea that is heterozygous for both pod color and seed shape. Determine the genotypic ratio and phenotypic ratio of the offspring.

1. A cross between a black cat and a tan cat results in a tabby A tabby cat is crossed with a tan cat.

• What is the pattern of inheritance in this example? (1 point)
• What ratio of the offspring will have tabby fur? Tan fur? Black fur? (3 points answer; 4 points Punnett square)

what is the role of the 2 metal ions in DNA polymerase

Using named meninges and ventricles state the functions of cerebrospinal fluid and where it circulates. (10%- 5 marks for meninges and ventricles, 5 for functions of CSF).( short answer please)

What is oxygen debt

An example of liverwort is?

Would the use of pH buffers help prevent muscle fatigue during exercise? 

What happens to amylose starch that is not fully hydrolyzed in the small intestine? What might be the clinical consequence? 

A cross between a blue bird and a white bird produce silver offspring. What are the genotypes of the parents? What are the genotypes of the offspring?