BIOD 210 Genetics Final Exam Question
and Answer | Grade A+ | Complete Verified
Guide
• Describe Sickle Cell Anemia -✓✓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.
• Why did Mendel use a pea plant for his studies? -✓✓- Easy to grow and breed
- Self-fertilizing
- Easy to cross-breed
• A __________ cross occurs when two pure individual parental strains are mated
that contrast ONLY in the trait that is being observed -✓✓monohybrid
• In genetics, _______ refers to the original parental generation -✓✓P1
• The first set of offspring from the parents are called the ___ generation, which
stands for ______________. -✓✓F1 , first filial generation
• The term _____________ is used to describe the physical manifestation of any
trait -✓✓phenotype
• In the second generation of a heterozygous monohybrid cross, what percentage of
the offspring have the dominant phenotype? recessive? -✓✓75%, 25%
the ratio is 3:1
and Answer | Grade A+ | Complete Verified
Guide
• Describe Sickle Cell Anemia -✓✓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.
• Why did Mendel use a pea plant for his studies? -✓✓- Easy to grow and breed
- Self-fertilizing
- Easy to cross-breed
• A __________ cross occurs when two pure individual parental strains are mated
that contrast ONLY in the trait that is being observed -✓✓monohybrid
• In genetics, _______ refers to the original parental generation -✓✓P1
• The first set of offspring from the parents are called the ___ generation, which
stands for ______________. -✓✓F1 , first filial generation
• The term _____________ is used to describe the physical manifestation of any
trait -✓✓phenotype
• In the second generation of a heterozygous monohybrid cross, what percentage of
the offspring have the dominant phenotype? recessive? -✓✓75%, 25%
the ratio is 3:1
