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BIOD 210 Module 3 Exam
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BIOD 210 Module 3 Exam
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BIOD 210 Module 3 Examwhite blood cells - ANSWER Karyotyping is typically done by isolating ________
from a person, staining them, and taking pictures under a microscope
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
In addition, the odd shape of the red blood cells actually causes blockages in small
blood vessels, which causes pain and damage to the brain, heart, muscles, and
kidneys. The condition is especially exacerbated under atmospheric conditions
where oxygen is lower, so people with sickle-cell anemia can become extremely sick
at high altitudes. - ANSWER Describe Sickle Cell Anemia
- Easy to grow and breed
- Self-fertilizing
- Easy to cross-breed - ANSWER Why did Mendel use a pea plant for his studies?
monohybrid - ANSWER A __________ cross occurs when two pure individual
parental strains are mated that contrast ONLY in the trait that is being observed
P1 - ANSWER In genetics, _______ refers to the original parental generation
F1 , first filial generation - ANSWER The first set of offspring from the parents are
called the ___ generation, which stands for ______________.
phenotype - ANSWER The term _____________ is used to describe the physical
manifestation of any trait
75%, 25%
the ratio is 3:1 - ANSWER In the second generation of a heterozygous monohybrid
cross, what percentage of the offspring have the dominant phenotype? recessive?
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 - ANSWER Define
gene
Alleles - ANSWER _________ are simply variations of a given gene
If F1 generation of a dihybrid cross is crossed, it will result in the 9:3:3:1 ratio of
offspring - ANSWER Explain Mendel's 9:3:3:1 dihybrid ratio
product law of probabilities
often 3/4 * 1/4 in some frequency - ANSWER The
___________________________________ in genetics states that "the probability of
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