genetics terms
genetics 2
genetics 3
Punnett Squares
natural selection
Pedigrees
100
what is genetics
when a trait is passed through the offspring
100
what is allele
a different form of a gene
100
What do we use to figure out the probability of a trait for the offspring?
Punnett Square
100
what type of genotype is the yellow parent in this cross?
Homozygous recessive
100
what is natural selection
organisms best adapted to their environment will survive long enough to breed and pass on traits
100
Name 1 couple in this chart
1 &2, 3&4, 5&6, 8&9, 10&11
200
What is DNA?
DNA is what contains all of your genes (coding for everything in your body)
200
what is a dominate trait
a upper case allele
200
What is codominant
When both genes are dominant and show their distinct traits in the offspring
200
What type of genotype is the green parent in this cross?
Heterozygous
200
what is adaptation
the slow change (multiple generations) in a species to better fit their environment
200
Name 3 siblings in this chart
6,7,8
9,10,12
15,16,17
300
What is a mutation?
a sudden change in DNA's nitrogen bases
300
what is a recessive trait
lower case alleles
300
What is incomplete dominance
When neither trait is dominant and you will get a mixing/blending of the trait in the offspring.
300
What are the genotypes in the offspring?
Gg (50%) and gg (50%)
300
what are alleles
different forms for the same trait (variations of a trait)
300
What does a circle mean on a pedigree chart
Female
400
Put these three things in order from smallest to biggest:
Chromosome, Deoxyribonucleic acid, and Gene
Gene, Chromosome, Deoxyribonucleic acid
400
what is phenotype
Physical appearance (what you see)
400
Feather color in chickens is codominant. What will the offspring look like if you cross a black chicken with a white chicken?
They will be speckled black & white?
400
If there were 16 offspring, about how many should be green?
8 offspring
400
What is speciation?
When a new species develops with unique characteristics from it's original organism
400
What does a square mean on a pedigree chart?
Male
500
What is another name for a trait?
Phenotype (what you see)
500
what is genotype
a combination of alleles (Bb, bb, BB)
500
Flower color is incomplete dominance. What would happen if you crossed a red flower with a white flower?
It would be pink
500
If there were 26 offspring, about how many should be yellow?
13 offspring (26/2)
500
Who came up with natural selection?
Charles Darwin
500
What does a half filled in circle mean on a pedigree chart?
A female that is a carrier for a trait