Study sets, textbooks, questions
Upgrade to remove ads
Nonmendelian and Human Genetics
Terms in this set (34)
heterozygous phenotype is a blend of the two homozygous phenotypes; one allele is not completely dominant over another
notation for incomplete dominance
uses primes on capital letters
examples of incomplete dominance
red flower + white flower = pink flowers
A condition in which both alleles for a gene are fully expressed; both alleles are expressed equally
notation for codominance
use two different capital letters
examples of codominance
blood types; black chicken + white chicken = checkered chicken
An additive effect of two or more genes on a single phenotypic character; skin color, eye color, height, intelligence
A gene that has more than two alleles; blood type
blood type genotypes
Type A: IAIA/IAi
Type B: IBIB/IBi
Type AB: IAIB
Type O: ii
Any chromosome that is not a sex chromosome; chromosomes #1-22
Traits controlled by genes located on sex chromosomes; chromsome pair #23
sex chromosomes for a female
sex chromosomes for a male
notation for a sex linked trait
use X and Y with capital or lowercase letters as exponent
Hydrangea colors changing because of a change in pH or sea turtle gender changing because of temperature change is an example of.....
change of environmental factor on phenotype
A diagram that shows the occurrence of a genetic trait in several generations of a family.
A human genetic disease caused by a dominant allele; characterized by uncontrollable body movements and degeneration of the nervous system; usually fatal 10 to 20 years after the onset of symptoms which do not begin until the age of 30-50.
A form of human dwarfism caused by a single dominant allele; the homozygous condition is lethal
Sickle cell anemia
a genetic disorder that causes abnormal hemoglobin, resulting in some red blood cells assuming an abnormal sickle shape; autosomal recessive
Greater reproductive success of heterozygous individuals compared to homozygotes; tends to preserve variation in gene pools.
A genetic disorder that occurs in people with two copies of a certain recessive allele; characterized by an excessive secretion of mucus and consequent vulnerability to infection; fatal if untreated.
a fatal genetic disease that causes fatty material to build up in the nerves and brain; autosomal recessive
A human metabolic disease caused by a mutation in a gene coding for a phenylalanine processing enzyme (phenylalanine hydroxylase), which leads to accumulation of phenylalanine and mental retardation if not treated; inherited as an autosomal recessive phenotype; can be treated with diet
Red-Green Color blindness
sex linked recessive; cannot see red and green
An X-linked recessive disorder in which blood fails to clot properly, leading to excessive bleeding if injured.
A display of the chromosome pairs of a cell arranged by size and shape.
An error in meiosis or mitosis in which members of a pair of homologous chromosomes or a pair of sister chromatids fail to separate properly from each other.
a condition of intellectual disability and associated physical disorders caused by an extra copy of chromosome 21.
3 copies of a chromosome
Chromosomal abnormality consisting of the absence of one chromosome from the normal diploid number
autosomal recessive pedigree
May skip a generation. If the child has it, the parents have to have it or be carriers for the trait. Both males and females can be carriers.
autosomal dominant pedigree
The trait shows up in every generation. Two parents may have the disorder, but some of their children may not; there are no carriers
sex-linked recessive pedigree
-no father-son inheritance
-mostly males affected
-traits skip generations
-females are the only type of carrier
an individual that is heterozygous for a recessive disorder
Recommended textbook explanations
Kenneth R. Miller, Levine
Nelson Science Perspectives 10
Christy C. Hayhoe, Doug Hayhoe, Jeff Major, Maurice DiGiuseppe
Texas Science Fusion: Grade 7
Biology Study Workbook A
Kenneth R. Miller, Levine
Sets found in the same folder
Recombinant DNA Technology
DNA Mutation and Repair
Sets with similar terms
Chapter 12: Mendel and Heredity
Complex Patterns of Inheritance
Chapter 29: Heredity
Chapter 11 Complex Inheritance and Human…
Other sets by this creator
Foodborne Illnesses too
Food preservation too
Other Quizlet sets
AP Gov. Unit 2 Test
FIN 301 EXAM 2 CHAPTER 7
Study Area Practice Test: Chapter 13
7th Science Weathering and Soil Formation Ch. 8