GENETIC VOCAB
The functional unit of heredity
GENE
Which of these was NOT a dominant trait in our class lab:
Left Handedness
Tongue Rolling
Brown Eyes
Straight Thumb
Left Handedness
How many TOTAL chromosomes does an individual human have?
46
Genetic makeup of an individual
GENOTYPE
All of these are bases in a strand of DNA EXCEPT:
ADENINE
CYTOSINE
THYMINE
ETHANOL
ETHANOL
Physical characteristics that you can see or observe in an individual
PHENOTYPE
Colorblindness is more common in:
Females
Children
Males
Adults
MALES
In humans, a male has which chromosomes?
One X and one Y chromosome
Two of the SAME alleles
HOMOZYGOUS BB, bb
Ian Wilmut created a sheep named _________ in 1996 using a process called ____________.
DOLLY
CLONING
Scientific study of heredity
GENETICS
Eye color or freckles are observable traits or the __________________ of a person.
PHENOTYPE
In humans, a female has which chromosomes?
XX
Two different alleles for a trait
HETEROZYGOUS Bb
The twisted shape of a DNA strand
DOUBLE HELIX
Diagram or chart of the genetic history of a family over several generations
PEDIGREE
Cross between parents differing in only one trait?
MONOHYBRID
There are _____ pairs of chromosomes in each cell nucleus.
23
A trait that is masked by the other allele
RECESSIVE
When a DNA gene is damaged or changed
MUTATION
What does DNA stand for?
DEOXYRIBONUCLEIC ACID
Cross between parents differing in two traits
DIHYBRID CROSS
A mutation of Chromosome 21, where there are three copies of chromosomes instead of two, or Trisomy 21, is referred to as this disorder?
DOWN SYNDROME
Diagram that shows all of the possible combinations or probability of traits in offspring
PUNNETT SQUARE
What is incomplete dominance? Use an example of a flower to explain.
If you have a red flower and a white flower, it is incomplete dominance if the offspring is a pink flower.