A person with normal body fluid volumes weighs 60 kg and has an extracellular fluid volume of approximately 12.8 L, a blood volume of 4.3 L, and a hematocrit of 0.4; 57% of his body weight is water.

What is the approximate plasma volume?

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#Question id: 15147

#Unit 8. Inheritance Biology

You have isolated a set of five yeast mutants that form dark red colonies instead of the usual white colonies of wild-type yeast. You cross each of the mutants to a wild-type haploid strain and obtain the results shown below;

you cross each haploid mutant strain to a different haploid mutant of the opposite mating type. From the results shown below deduce as much as you can about which mutations lie in the same gene. Clearly state any remaining ambiguities and suggest some general ways that the ambiguities might be resolved

a) That mutants 1 and 3 form one complementation group and are mutations in the same gene (gene A) 

b) That mutations 2 and 5 form a second complementation group and are mutations in a second gene (gene B).

c) That mutations 3 and 5 form a second complementation group and are mutations in a second gene (gene B).

d) The first ambiguity is whether mutant 4 has a mutation in gene A or B, or whether it represents a unique gene.

Which of the following is the correct prediction about mutants?

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#Question id: 15146

#Unit 8. Inheritance Biology

You have isolated a set of five yeast mutants that form dark red colonies instead of the usual white colonies of wild-type yeast. You cross each of the mutants to a wild-type haploid strain and obtain the results shown below;

What do these results tell you about each of the mutants?

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#Question id: 15010

#Unit 8. Inheritance Biology

The phenomenon where half the "normal" level of functional protein is not enough to generate a normal phenotype is called haploinsufficiency. Which of the following situations demonstrates haploinsufficiency?

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#Question id: 11635

#Unit 8. Inheritance Biology

Given below, is the result of a complementation test for eight independent mutants (1 to 8).

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#Question id: 11634

#Unit 8. Inheritance Biology

Given below, is the result of a complementation test for six independent mutants (A to H) '+' represents complementation; '-' represents noncomplementation Based on the above, which one of the following conclusions is correct?

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#Question id: 3638

#Unit 8. Inheritance Biology

Four different mutant lines showing similar phenotype were identified from a genetic screen. When genetic crosses among these mutants were carried out, the first mutant was found to complement the second, third and fourth mutant lines. However, no other complementation groups do the four mutant lines belongs to?