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Lung Inflation and Collapse “A”    _______ “B”    _______ “C”    _______ “D”    _______ “E”    _______ “F”    _______ “G”    _______ “H”    _______

As discussed in the lecture sequence, an increase in the respiration rate will occur when what occurs

As the conditions in the alveoli become “poor” (increased CO2 concentration and decreased O2 concentration), how would you expect the “A” and “B” to respond  

Which of the below is a nonspecific response initiated by neutrophils and will induce metabolic stress, thereby limiting bacterial growth.  Pick the best answer.

•    Matching.  Make appropriate associations below.   •    Choose the BEST answer if more than one answer seems correct

The blood brain barrier consists of all the below except

Matching.  Make appropriate relationships.      *    Answers may be used more than once or not at all.     *    Always choose the best answer if two answers appear correct ————————-

Listed below are some sex chromosome combinations. For each combination, state whether the individual is male or female in humans and also in Drosophila (assume the flies have two sets of autosomes). Please answer with either the word male or female (not metafemale or metamale).   Chromosomes Biological Sex in Humans Biological Sex in Drosophila XXX XY XO XXY XX     What would be the biological sex of a human XXY individual with a mutation in the SRY gene (assume the mutation leads to a completely nonfunctional SRY protein)? How many Barr bodies would be present in the cells of an XXX individual?

In Drosophila, white eyes (Xw) result from an X-linked allele that is recessive to the allele for wildtype red eyes (Xw+). Give the most likely genotypes of the parents in each of the following crosses. Please use the following notation for the alleles: Xw (white-eyed allele) and Xw+ (wildtype red-eyed allele) and indicate genotype without space between alleles/chromosomes (e.g. XwXw). Don’t forget that males have a Y chromosome!     Male Parent Female Parent Male Offspring Female Offspring Cross #1 White Red 625 Red 630 Red Cross #2 Red White 556 White 576 Red Cross #3 White Red 231 Red 250 White 224 Red 234 White   Genotype for male parent #1: Genotype for female parent #1:    Genotype for male parent #2:  Genotype for female parent #2:   Genotype for male parent #3: Genotype for female parent #3:      

In cats, the browning gene codes for an enzyme involved in pigment production. The B allele is dominant and leads to black colored fur and the recessive b allele leads to a chocolated colored fur. A cat breeder crosses two black cats to each other and gets a litter of cats where 6 kittens are black and 3 are chocolate. What is the genotype of the two parental cats (P generation )? If you were to randomly select a black F1 kitten from the litter in the previous question, what is the probability that the kitten would be homozygous for the B allele? The breeder wants to perform a test cross to determine the genotype of one of the black F1 kittens. Once this kitten is old enough to be crossed, it will be crossed to another cat with what genotype?