27 Questions
What is the study of how traits are passed from parent to offspring?
Genetics
What is the term for the transmission of traits from one generation to the next?
Heredity
What are the segments of DNA that code for a specific protein?
Genes
What is a characteristic produced by the actions of one or more gene-directed proteins?
Trait
What are different forms of a gene that produce different versions of the trait they determine?
Alleles
How many chromosomes are received from each parent?
23
What is the purpose of a pedigree chart?
To study the genetic connections among individuals in a family
What is a carrier in the context of genetics?
Someone who displays the dominant phenotype but is heterozygous for a trait
What is the purpose of chorionic villus sampling (CVS)?
To confirm if the baby has a genetic disorder or chromosome condition
What is the correct term for a trait that is not visible in the heterozygote?
Recessive trait
What is the main goal of CRISPR technology?
To edit genes and treat genetic disorders
What is the genotype of an offspring with freckles in a cross between two parents heterozygous for the freckle trait?
Ff
What is the phenotypic ratio of offspring in a monohybrid cross?
3:1
What is the purpose of a dihybrid cross?
To study the inheritance of two traits
What is the law of independent assortment?
The law that states that alleles of a pair segregate independently of other allele pairs during gamete formation
What is the term for one gene having multiple effects on the body?
Pleiotropy
What is the genotypic ratio of offspring in a monohybrid cross?
1:2:1
What is the result of having two copies of the sickle-cell allele?
All hemoglobin is the sickle-cell variety
What happens to the sickled red blood cells in the body?
They break down and clog blood vessels
What is the effect of sickle-cell anemia on the body's organs?
Multiple organs are affected, including the heart, brain, lungs, kidneys, and muscles and joints
What is the probability of getting either a one or a six on a single roll of a fair six-sided die?
1/3
What is the term for the condition where an individual has one copy of the sickle-cell allele and one copy of the normal allele?
Sickle-cell trait
Which rule is applied when finding the probability of an outcome that requires either event X or event Y to occur?
Rule of addition
What is the result of the abnormal hemoglobin in sickle-cell anemia?
Red blood cells become sickle-shaped when oxygen content is low
In an Aa x Aa cross, how many events can lead to a dominant phenotype?
3
Why can we apply the rule of addition in an Aa x Aa cross?
Because the events are mutually exclusive
What is the type of situation where the rule of addition is applied?
Or situation
Understand the principles of inheritance, breaks in chromosomes, and detecting genetic disorders. Learn how genetic information is carried on chromosomes and how traits are passed down from parents to offspring.
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