WorksheetsMonohybrid and Dihybrid Crosses
Total questions: 29
Worksheet time: 28mins
(RRYY x rryy)
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds?
Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?
9/16
3/16
1/16
16/16
In a fly that has the genotype GgNn, what combination of alleles can be produced in the gametes?
Gg, Nn
GN, Gn, gN, gn
gN, Gn
GN, gn
In a plant that has the genotype rrGg, what combination of alleles can be produced in the gametes?
RG, rg
rG, rg
rg only
Rg only
In a plant that has the genotype RrGg, what combination of alleles can be produced in the gametes?
Rg, gR, rg, GR
RG, Rg, rG, rg
RG, rg
Rg, Gr
Phenotype refers to the ______________________ of an individual.
genetic makeup
actual physical appearance
recessive alleles
Which of the following genotypes is homozygous recessive?
Tt
tt
TT
T
What does heterozygous mean?
An organism that has the same alleles for a trait (TT or tt)
An organism that has different alleles for a trait (Tt)
When neither allele is fully dominant; offspring is a mixture of both
the different forms of a trait (hair color--> brown, blonde, red
Law which states that different traits are inherited independently of each other
Law of independent assortment
Genetics law
If your genotype is Bb, then you can only pass a B or b to your child but you can't pass both.
Law of Dominance
Law of Segregation
Law of Independent Assortment
The following genotypes are (a) : Tt, Mm and Gg
The same gene can come in different versions, the different versions of a gene are called
(a)
Different versions of the same gene
Gene
Alleles
Homologous Chromosomes
Homozygous
Heterozygous
genes for traits located on sex chromosomes; if on the X (most likely), males only get 1 copy and females get 2
Multiple Alleles
Polygenic Inheritance
Linked Genes
Sex-Linked Traits
heterozygous genotype yields a phenotype that shows both of the other traits fully and separately
Chromosome Theory of Inheritance
Incomplete Dominance
Epistasis
Codominance
Carrier
heterozygous genotype yields a phenotype that is a blend of the other two traits
Chromosome Theory of Inheritance
Incomplete Dominance
Epistasis
Codominance
Carrier
more than 1 gene determines a trait
Multiple Alleles
Polygenic Inheritance
Linked Genes
Sex-Linked Traits
genes that are physically located close together on the same chromosome are often inherited together
Multiple Alleles
Polygenic Inheritance
Linked Genes
Sex-Linked Traits
more than 2 versions of 1 gene
Multiple Alleles
Polygenic Inheritance
Linked Genes
Sex-Linked Traits
Any change in DNA
Mutation
Mutagen
Duplication
According to the DNA fingerprints, which person is the most likely culprit?
Bugsy
Dino
Daisy
Tootsie
How many chromosomes do humans have?
23
46
13
47
Chromosomes that code for everything but sex
autosomes
sex chromosomes
Chromosomes that code for sex
autosomes
sex chromosomes
XX
Female
Male
XY
Female
Male
