BIOD 210 FINAL EXAM QUESTIONS WITH RATIONAL
_________ are simply variations of a given gene - CORRECT ANSWER - Alleles
________________ are bacterial strains that lack essential nutrients or amino acids such that
they cannot grow without supplementation in minimal medium - CORRECT ANSWER -
Auxotrophs
3 types of enzymes and describe each - CORRECT ANSWER - 1. Inducible: Turned on in
response to a specific stimulus or environment.
2. Repressible: Turned off in response to a specific stimulus or environment.
3. Constitutive: Always on regardless of the environment or stimulus.
, A __________ cross occurs when two pure individual parental strains are mated that contrast
ONLY in the trait that is being observed - CORRECT ANSWER - monohybrid
Bacteria that can grow on minimal media are called ___________________ - CORRECT
ANSWER - prototrophic
Define gene - CORRECT ANSWER - a gene is defined as a unit of heredity that is transferred
from a parent to offspring and is held to determine some characteristic of the offspring
Describe Sickle Cell Anemia - CORRECT ANSWER - People who inherit a mutant copy of the
β-globulin protein from both parents have sickle-cell anemia. The mutant β-globulin causes the
hemoglobin within red blood cells to distort when the oxygen in the blood is low, and in fact,
deforms the cell shape so much that the distorted cells break very easily. In turn, the loss of the
broken cells lowers the total number of red blood cells, resulting in anemia
_________ are simply variations of a given gene - CORRECT ANSWER - Alleles
________________ are bacterial strains that lack essential nutrients or amino acids such that
they cannot grow without supplementation in minimal medium - CORRECT ANSWER -
Auxotrophs
3 types of enzymes and describe each - CORRECT ANSWER - 1. Inducible: Turned on in
response to a specific stimulus or environment.
2. Repressible: Turned off in response to a specific stimulus or environment.
3. Constitutive: Always on regardless of the environment or stimulus.
, A __________ cross occurs when two pure individual parental strains are mated that contrast
ONLY in the trait that is being observed - CORRECT ANSWER - monohybrid
Bacteria that can grow on minimal media are called ___________________ - CORRECT
ANSWER - prototrophic
Define gene - CORRECT ANSWER - a gene is defined as a unit of heredity that is transferred
from a parent to offspring and is held to determine some characteristic of the offspring
Describe Sickle Cell Anemia - CORRECT ANSWER - People who inherit a mutant copy of the
β-globulin protein from both parents have sickle-cell anemia. The mutant β-globulin causes the
hemoglobin within red blood cells to distort when the oxygen in the blood is low, and in fact,
deforms the cell shape so much that the distorted cells break very easily. In turn, the loss of the
broken cells lowers the total number of red blood cells, resulting in anemia
