WorksheetsUnderstanding inheritance
Total questions: 28
Worksheet time: 19mins
________ is how a trait appears, or is expressed. The part we can see.
Alleles
Genotype
Phenotype
Genes
A __________ is a model used to predict possible genotypes and phenotypes of offspring.
Pedigree
Punnett Square
Codominance
Genetic Make-up
_________ is when the two alleles of a gene are different. Rr
Heterozygous
Genotype
Phenotype
Homozygous
__________ is when the two alleles of a gene are the same. RR and rr
Heterozygous
Genotype
Phenotype
Homozygous
An organism’s genetic makeup or allele combination.
Cannot be seen. It is the code inside
Genotype
Phenotype
Beanotype
Notype
In the punnett square below, what belongs in the missing square
B = brown fur b = white fur
In the Punnett square, what are the genotypes
Bb, bb
Brown, white
1:1
Which of the following is a genotype?
Aa
black hair
heterozygous genes
mutated DNA
_____________ is when the offspring’s phenotype is a combination of the parents’ phenotypes.
Pedigree
Complete Dominance
Codominance
Incomplete Dominance
_____________ occurs when multiple genes/alleles determine the phenotype of a trait.
Polygenic Inheritance
Codominance
Incomplete Dominance
Complete Dominance
Human ABO blood type is an example of a trait that is determined by ___________ alleles.
One
Single
Multpile
No
What is the genotypic ratio here
TT = 1, Tt= 2, tt=1
all tall
TT= 3 tt = 1
Tt = 1
To be a yellow seed, genotype must be
aa
Aa
AA
AA or Aa
The Phenotypic ratio here is
25% blue eye 75 % brown eye
BB = 25% Bb = 50% bb = 25%
BB= 50 % bb = 50%
All brown eye
In the punnett square shown, what is the genotypes of the father/mother
RW and RR
RW and WW
RR and WW
RW and RR
What factors can impact a phenotype
gene
environment
healthy choice
Where are genes located
chromosoms
parents
alleles
nucleus
B = brown fur b = white fur
In the Punnett square, what is the genotypic ratio
Bb, bb
Brown, white
1:1
Tall, Short
Punnett Square
Pedigrees
Genotypes
Phenotypes
Gg, GG
Punnett Square
Pedigrees
Genotypes
Phenotypes
