Explain why very low body temperatures in warm-blooded animals is bad for membrane fluidity. What is one way their cells can resist the effects of decreased body temperatures on their membrane fluidity? 

Alport syndrome (AS) is a genetic disease in which a mutation affects the kidneys, the ears, and the eyes. The syndrome causes kidney disease as well as deafness. Affected men in the family died early as a result of their kidney problems; whereas, females lived until old age and showed mild symptoms. The gene responsible for Alport syndrome is located on the X chromosome. Susan and Philip have 2 children. Their 12-year old son, Joe already has kidney problems while their 15-year old daughter Marianne is healthy. Susan had a brother who died of Alport syndrome but her parents are both over 60 years old.If Susan and Philip are expecting another child. They are concerned with the chance of having an affect son. What is the probability of their next child being born a son and have Alport Syndrome?

A woman who has blood type A has a daughter who is type O and a son who is type B.  Which of the following is the genotype for the father?

Describe the endomembrane pathway used by the cell to synthesize and release a secreted protein. Also, highlight any other cell structures needed to secrete a protein that are not considered a part of the endomembrane system. 

Imagine a species with three loci thought to be on the same chromosome. The recombination rate between locus A and locus B is 12% and the recombination rate between locus B and locus C is 21%. Predict the recombination rate between locus A and locus C.

Refer to the figure to answer the following questions about 2 membrane proteins 1 and 2 . What type of membrane protein is protein 1, and what is one cellular function? What type of protein is protein 2 and what is one cellular function?   

In order to conserve energy and nutrients, cells will lower the rate of glycolysis if ATP levels are  _____; the first enzyme in glycolysis, phosphofructokinase, is _____ by ATP.

Assume that fur darkness is controlled by one gene and that tail length is controlled by a second gene on separate chromosomes.  Dark in mice (F) is dominant to light fur (f).  Stubby tail (S) is dominant to long tail (s).  What fraction of the progeny of the cross FfSs X Ffss will have dark fur and long tails?

Organize the following from smallest-1 to largest-4.  Each number can be used only once.   Gene  Nucleotide Genome Chromosome

Prokaryotes do not need the enzyme ___________________ because their DNA is circular not linear; hence, do not have ________________ on their ends. Your answer should consist of the first blank word with a comma and a space between them. For example: black, white