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Consider a hypothetical plant. There are two genes that dictate how the flower will smell. These two genes are located ON THE SAME CHROMOSOME. Gene B has two alleles: The dominant allele (B) encodes for "banana" smell. The recessive allele (b) encodes for "strawberry" smell. The other gene that influences smell (gene C) also has two alleles. The dominant allele (C) encodes for "chocolate" smell, and the recessive allele (c) encodes for "vanilla" smell. Now, consider a cross. The first individual is homozygous for both of the recessive alleles. The second individual has a chromosome with "B" and "C" alleles, and a chromosome with "b" and "c" alleles. Assume that no crossing over happens during meiosis. What proportion of the offspring will produce flowers that smell like vanilla strawberries?Answer
All of themNone of them½¼
how they (cluster determination,restriction digest) connect to each other.
Studies on the global climate cycle have revealed a %u201Cmissing%u201D carbon sink (i.e., carbon being taken from the atmosphere and put into the biosphere) of approximately 3 GT/year (thought to be an underestimate of the size of the photosynthe..
The idea is that this arrangement will allow animals and plants to migrate between refuges. Why would such migration be significant. Examine the F1 offspring from this cross.
The structure of biological membranes is estimated primarily by the lipid bilayer but the specific functions of these membranes are carried out through proteins associated with the membrane.
Pulse-chase experiments were vital for showing that RNA acts as an information-transfer intermediary between DNA and protein. Describe the basic steps of a pulse-chase experiment and explain how the results suggested that RNA is the intermediate.
Plan a scientific experiment to find out the effect of this environmental factor on the rate of photosynthesis or cellular respiration in your chosen organism (reviews the scientific method, remember hypothesis, control so on.
DNA sequences differ between species due to substitution events, i.e. when new mutations arise and become fixed by drift or selection in one of the species.
explain Why is it advantageous for citrate the product of reaction 1 of the TCA, to inhibit phosphofructokinase, which catalyses the third reaction in glycolysis.
Within the two groups define by the bone mass, smaller skeletons have bones with evidence of epiphyseal plates, but larger bones have only a thin line where the epiphyseal plates should be. Give the age group and gender of the individuals in this fin..
Which of the following is not a requirement of natural selection.
What do you think would happen if a person had a mutation that prevented the jaw part of their HLA molecules from becoming the correct shape.
The value of DNA per cell of particular species is measured in cells found at various stages of meiosis and the cell cycle, and the amounts are obtained.
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