Chromosomes Effects of Gene Location Mutations Inheritance of Traits Genetic Traits and Disorders
100
Female:: XX as Male::
XY
100
Where does a sex-linked chromosomes occur?
Most commonly in males
100
What are the effects of a mutation?
Neutral, harmful, and helpful
100
What is a pedigree?
A diagram in which several generations of a family and the occurrence of certain genetic characteristics
100
What is the blood type of a person who inherited an A allele from one parent and an O from another?
Type A
200
What determines the sex of an offspring?
The father/male
200
What is color blindness if the allele for color blindness is located on the X chromosome
Sex-linked
200
What is a mutation?
A change in gene due to damage or incorrect copying
200
What is a sex-influenced trait?
A one in which male and female can show difference in phenotypes while having the same genotype.
200
What can the risks of passing on a genetic disorder to ones children can be assessed by?
Genetic counseling, prenatal testing, analysis of a pedigree.
300
What are the sex chromosomes
The X and Y chromosomes
300
What genetic disorder does an offspring have with 47 chromosomes?
Down Syndrome
300
What happens in nondisjunction?
A gamete will receive too many or too few copies of a chromosomes.
300
What is the generation name of an offspring who's parents were homozygous recessive and homozygous dominant?
F2
300
Why Is it for not females to get the disease Hemophilia?What is the chance an offspring will inherit Cystic fibrosis if both the parents are carriers of the recessive allele?
1 in 4
400
What is substitution
when one nucleotide replaces another
400
What is nondisjunction?
Failure of replicated chromosomes to separate
400
What is a frame shift?
A mutation in which remaining codons are grouped incorrectly?
400
Blood type is controlled by how many alleles?
At least 2
400
Why Is it for not females to get the disease Hemophilia?
A female could get the disease only by having a mother who is a carrier and a father who has the disease. This is unlikely since most males with the disease do not survive the reproductive age
500
What is point-mutation
a change that occurs within a single gene or other segment of DNA on a chromosome
500
What is crossing over?
Linked genes separating from each other in mitosis
500
What is translocation?
A mutation caused by a piece of DNA breaking away from its chromosome and becoming attached to a non-homologous chromosome
500
What is a carrier?
A person who is heterozygous for a recessive disorder.
500
What is the gene coding for a disease in a family where the disease was found equally in males and females and the effected parent's offspring?
Autosomal dominant






Chapter 12: Inheritance Patterns and Human Genetics

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