Biology Answers

What are the enzymes that catalyze anaplerotic reactions that provide the necessary amounts of oxaloacetate? 

a. isolate lyases 

b. pyruvate decarboxylase, PEP carboxylase 

c. Asp aminotransferase 

d. PEP carboxykinase, PEP carboxylase, pyruvate carboxylase 

e. PEP carboxykinase, PEP decarboxylase, pyruvate kinase

Which of the following reactions is not included in the sequence of glycolytic chain reactions between glyceraldehyde 3-phosphate and 3-phosphoglycerate: (select one) 

a. oxidation of NADH and NAD + 

b. ATP synthesis 

c. incorporation of inorganic phosphate 

d. 1,3-bisphosphoglycerate formation 

e. phosphoglycerate kinase catalysis 

Explain the stages and what happens at each stage in the cell cycle

QUESTION 6 6.1 Have you ever wondered why fruits become sweeter as they ripen? Investigate and write a report about the taste of bananas. Conduct a test on the ripe and unripe banana to find out why bananas become sweet as they ripen. Your report must have the following headings: 6.1.1 Aim (2) 6.1.2 Hypothesis (2) 6.1.3 Materials and apparatus (4) 6.1.4 Method (6) 6.1.5 Results (4) 6.1.6 Conclusion

Possible phenotypes

Fast/Red____ : Fast/Grey ____ : Slow/Red ____ : Slow/Grey ____

If the multicellular organisms arise from the unicellular organisms, can you

tell that all the species/organisms are related with one another?

if a cell lives for 10 hours, how long will the cell spend in mitosis

You are a researcher interested in the Dystrophin gene. The Dystrophin gene is a gene that encodes the dystrophin protein that is required for muscle function and therefore is only expressed in muscle cells. From which of the following cells types would you expect to be able to isolate the Dystrophin gene? Explain your reasoning.

Fun fact: the Dystrophin gene is the largest gene in our genome! It’s codes for a really big protein too.

Fat cells

Skin cells

Muscle cells

All of these cells

In guinea pigs, black fur is dominant over white fur. If a homozygous dominant guinea pig were crossed with a homozygous recessive guinea pig, the first generation of offspring would _____. Select all that apply.

be heterozygous

be phenotypically identical

have all black fur

have half black fur and half white fur

be homozygous

 Which of the following is not an example of a trait that has more than two variations?

eye color

handedness

freckles

ability to roll tongue