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Female Drosophila flies heterozygous for each of three recessive autosomal mutations with independent phenotypic effects (thread eyes [th], hairy legs [h], and scarlet wings [st]) were testcrossed to males showing all three mutant phenotypes. The 1000 progeny of this testcross were the following:
thread, hairy, scarlet 432
wildtype 429
thread, hairy 37
thread, scarlet 35
hairy 34
scarlet 33
(a) Draw a linkage map that explains this data.
(b) Calculate any relevant interference values.
The K+ channel is an example of a transmembrane protein. What types of amino acids are likely to be found lining the channel through which K+ passes,
What mutations in the amino acid sequence would probably have the least detrimental effect on the functionality of the protein?
What is one way you might get bacteria of part b growing again without changing the medium. What result could be predicted if you were to transfer the bacteria of part a to the medium containing only unsaturated fatty acids without making any other ..
Suppose that an organism exists in which crossing over does not occur, but that all other processes associated with meiosis occur normally.
What are the four major arthropod phyla living today? which one contains the insects,and which the spider,and which the centipedes?
The grain triticale is a hybrid plant with 2-haploid sets of chromosomes. Suppose if triticale is chemically induced to become tetraploid and Create a hypothesis contain the highest biodiversity
Drag the diagrams of the stages of meiosis onto the targets so that the four stages of meiosis I and the four stages of meiosis II are in the proper sequence from left to right. (Note that only one of the two daughter cells is shown for meiosis II..
In which organism will a transposon more easily spread: in an asexual haploid species, or in a sexual diploid species? Explain.
Assume ou have overexpressed p16INK4a in ESCs and you detect increased phosphorylation of RB. The cell cycle in those cells is inhibited with cells accumulating in S-phase. Is this possible?
Need assistance with a paper on any disease or condition of the body. The paper should include thorough description of the disease/condition
why would it be difficult to determine accurate values for the four variables in the Lotka-Volterra predator-prey model (a, rprey,m, b) for animals in the real world? Explain your answer.
Females of most mammalian species have estrus cycles instead of menstrual cycles. Such females usually come into estrus only once a year, generally in the spring.
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