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The Effects of Cytokinin on Plant Growth and Development
1. What is the advantage of dissolving kinetin in ethanol before placing it onto the paper disk?
2. Does the duration of the soaking of each disk in distilled water prior to treatment affect the growth of cotyledons measured in fresh weight? Explain.
The Effects of Ethylene on Plant Growth and Development
3. How did ethylene affect the growth and development of the seedlings?
4. What is the "triple response" of etiolated mung bean seedlings to ethylene?
5. What are climacteric and non-climacteric fruits?
Describe the effect the amount of soap on the amount of extracted DNA
any clue anyone knows how to answer any of these or attempt to?
Q3. The Trypsin-EDTA solution used in the experiment would contain 0.4% trypsin (w/v) and
0.03% EDTA (w/v). It is provided to you as a 10x stock solution.
(a) EDTA has a molecular weight of 292.24. What is the molarity of the EDTA in the 10X stock solution?
(b) What is the total final amount (in mg) of Trypsin which is added to the cells?
Q4. Following a 2 minute incubation, FBS solution is then added to the cells to deactivate the trypsin enzyme. The solution comprises 10% FBS, made up in 1x PBS. You decide to make up 50 ml of this solution using your 10 x PBS stock, and a 100% FBS stock.
(a) How much 10 x PBS will you need to use to make the 50 ml solution?
(b) How much 100% stock FBS would you need?
Give me a non example of meiosis
- You are a quantitative geneticist campaigning to raise awareness for proper genetic counselling about sickle cell disease in Saudi Arabia. You conduct a study to determine the frequency of sickle cell genotype (ss) among the citizens living in Khobar, Saudi Arabia. You randomly sample and screen 500 subjects for the sickle cell genotype for the age group of 1-50 years and find that 369 of those individuals are homozygous dominant (SS), 115 are heterozygous (Ss), and 16 are homozygous recessive (ss).
- Calculate the allele frequencies (show your work). Hint, use: 2 x (SS) + (Ss)/2 x 500 to calculate your (S) allele frequency. Subtract that result from 1 to get your (s) allele frequency.
Glycogenolysis
1) What is glycogen? Where is it stored?
2) Glucagon, a hormone found in the pancreas, stimulates what enzyme found only in the liver and not in skeletal muscles? Identify the two pathways where this enzyme is used.
3) In the reaction: glycogen to glu-1-phosphate, what reaction is involved? Name the enzyme.
4) In the reaction: glu-1-phosphate to glu-6-phosphate, what reaction is involved? Name the enzyme. Identify the two pathways where this enzyme is used.
5) In the reaction: glu-6-phosphate to glucose. What reaction is involved? Name the enzyme. Identify the two pathways where this enzyme is used.
Glycogenesis
6) In the reaction: glucose to glu-6-phosphate, what reaction is involved? Name the enzyme. Identify the two pathways where this enzyme is used.
Gluconeogenesis
1. Phosphoenolpyruvate is a common substrate found in what two pathways?
2. Why is gluconeogenesis labeled as enzymatic by-pass reactions?
Glycogenolysis
3. Explain the function of glucagon and the reaction that is being catalyzed.
4. Epinephrine, a hormone found in the adrenal gland, stimulates the skeletal muscles to produce glucose-6-phosphate. What is the intended purpose of most of the ATP produced from this reaction?
Glycogenesis
5. This metabolic pathway is activated by what hormone that is found in the pancreas? Explain its function.
- What was the disadvantage of the unfavored Human Lactose Intolerance trait(s)?
- How did the Human Lactose Intolerance numbers change after the environmental pressure?
- Were there other factors that helped Human Lactose Intolerance survive that were unrelated to genetics?
Mr Smith has blood type AB, select the possible genotype/s that would result in this blood type.
Question 8 options:
A) Io Io
B) Ia Io
C) Ia Ia
D) Ia Ib
E) Ib Io
F) Ib Ib
Please look back at my other question regarding the ABO blood group question #6
Jerry the mutant turtle has a chromosomes number of 2n=16. A cell from Jerry that is in Telophase I has:
a). 16 chromosomes
b). 8 chromosomes
c). 4 chromosomes
d). None of the above.
2n=16
n=16/2=8
a.?
is this correct? Please answer my question ASAP I am writing a test. Thanks!
