Cards in this guide (17)
What kind of trait is present when many different genes control a single trait such as skin color
What kind of diseases are the most common genetic diseases For example those in which both parents may be carriers of the disease without knowing it because they don't actually have the disease
What common condition is caused by the presence of three copies of chromosome 21
What is expressed when both alleles for a gene are equally expressed as in human blood type
This is called co-dominance. This is when 2 or more alleles are expressed at the same time. In other words they both affect the phenotype. In the example of human blood ABO type we have an allele for A = IA, B= Ib O=i
IAIb = AB blood type
IbIb = B blood type
Iai = A
IaIa = A bloody type
Ibi = B blood type
ii = O blood type
What term describes the structure of a cell plasma membrane because of its oily nature and embedded proteins
A strawberry blonde has pale red hair. What is a strawberry roan
What kind of cross predicts the inheritance of two characteristics
What is an example of a disorder associated with an error in the number of chromosomes present
Down syndrome (trisomy 21) is a disorder associated with an
error in the number of chromosomes present. Other examples of
disorders associated with an error in the number of chromosomes are
Trisomy 18 (Edwards Syndrome), Trisomy 13 (Patau Syndrome), Triple
X syndrome, and Klinefelter Syndrome.
Why cant patterns of inheritance in humans be as easily studied as in peas or fruit flies
Humans produce few offspring slowly
In fruit flies gray body color is dominant over black body color Suppose that a gray fruit fly heterozygous for the alleles for body color is crossed with one that has a black body What percentage
What is the most common fatal genetic disease in the United states
cystic fibrosis (:
cystic fibrosis :)
cystic fibrosis ^-^
Hemophilia is a sex linked recessive disorder Mary does not have the disease but both of her brothers do Neither of her parents have the disease What are Marys parents genotypes indicates pr
Mary's father is normal and has a normal genotype X*Y while her
mother is the carrier of hemophilia and has one X of her genotype
infected i.e. she is X*X.
What causes disorders such as klinefelter syndrome and turner syndrome
non disjunction of sex chromosomes
What is the chart for ancestry and traits used as a tool to study human patterns of inheritance called
A pedigree chart is used to study human patterns of
inheritance.
A child is born with type ab blood. which of these statements is true
A+ Neither parent can have type O blood
Sex-linked recessive disorders are most often passed from mothers to sons.
A woman with type O blood has children with her husband who is type AB. What percent of their children would you expect to have type O blood A woman with type O blood has children with her husband who
