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What is phenol red used for in tissue culture work and what does a yellow color change in phenol red indicate in a tissue culture specimen?
One-fourth of their sons will be color blind and have blue eyes, 1/4 of their sons will be color blind and have brown eyes, 1/4 of their sons will have normal color vision and blue eyes, 1/4 of their sons will have normal color vision and brown ey..
It is frequently when the environment changes in some way that is unfavourable to an existing population that the organisms begin to reproduce sexually. Explain the importance of this switch from asexual to sexual reproduction.
Provide a reason why it would be advantageous for eukaryotic cells to evolve elaborate internal membranes systems that allow them to import substances from the outside?
(a) What does the Weismann's doctrine state? (b) Why is this doctrine so important for our understanding of evolution?
What is the job of the unwinding proteins, binding proteins, primers, DNA polymerase and ligase during replication?
What are three categories of genes that when mutated can lead to tumor formation? Describe the characteristics of each category.
Why do plant cells have mitochondria, but animal cells don't have chloroplasts? Give a phylogenic explanation.
Would the blood pressure in the pulmonary capillaries at the bottom of a lung be the same as the blood pressure in the capillaries at the top of a lung in the standing individual? Which area would have the lower blood pressure?
Why are rapidly evolving DNA sequences useful for determining relationships only among taxa that evolved from quite recent common ancestors?
Discuss how much of a 10X buffer would I add to a reaction whose total volume will be 20?L?
Susie needs a blood transfusion. She has type O blood. Her brother has type A blood. She asks if she can use his blood. What is the doctor's response?
A DNA polymerase can synthesize the DNA at a rate 300bp/min and can introduce error 2bp/400bp.If this DNA polymerase is used in a PCR reaction to amplify gene of 4000bp,calculate number of errors.
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