DNA
The passing of traits to offspring is called
heredity
Is Ff a genotype or a phenotype?
genotype
Cross the genotypes EE and Ee. What alleles do the 4 boxes consist of?
EE,EE,Ee,Ee
What is a recessive allele?
One human disease is caused by a change in one codon gene from GAA to GUA. This disease is a result of a __________________
mutation
genes
Give me an example of a homozygous recessive allele.
ff
If you cross two alleles and the four genotypes come out as Ff, Ff, Ff, ff - What is the ratio of dominant trait vs recessive?
3/4 will be dominant and 1/4 will be recessive
Identify the allele as heterozygous or homozygous: Ff
heterozygous
What occurs during a deletion mutation?
An allele is completely removed
Every DNA molecule is made up of molecules called
nucleotides
If brown hair is the dominant trait (B) and blonde hair is the recessive trait (b), What color hair does a person with the genotype bb have?
blonde
In dogs, there is a hereditary type of deafness caused by a recessive gene. Two dogs who carry the gene for deafness but have normal hearing are mated. What are the possible genotypes and phenotypes of their offspring and the percent chance for each?
Normal hearing- H
Deaf hearing- h
Genotype- HH, Hh, hh
Phenotype- normal hearing and deafness
Identify the allele as either dominant or recessive: Hh
Dominant
An organism with a gene GAATCAGTG has undergone mutation and is now represented with GAATCACTG. What type of mutation has occurred? How do you know?
Substitution
What object does a strand of DNA resemble?
What is the difference between a homozygous dominant parent and a heterozygous parent?
homozygous carries two of the dominant trait while the heterozygous parent carries both possible traits
In rabbits, black fur is dominant to white fur. If you cross a BB male with a Bb female, what are the possible genotypes and phenotypes of the offspring? What is the percent chance for each type?
Genotypes - BB and Bb
Phenotypes- black fur
Bobtails are recessive (long tails dominant). What traits do these genotypes posses?
TT
Tt
tt
TT- long tails
Tt- long tails
tt- short tails
What is the correct pairing of bases?
A-T
C-G
What does DNA produce?
proteins
In a group of Labrador retrievers, some individuals have black fur and others have brown fur. In this group, the gene for the fur color trait has two alleles. The allele F is for black fur, and the allele f is for brown fur.
Chester, a Labrador retriever from this group, has brown fur. Chester has two alleles for brown fur.
Based on this information, what is Chester's genotype for the fur color gene?
ff
Two heterozygous green pea plants are crossed. What best describes the offspring in percentage form?
3/4 dominant, 1/4 recessive
In a group of scarlet rosemallow plants, some individuals have red flowers and others have white flowers. In this group, the gene for the flower color trait has two alleles. The allele for red flowers (F) is dominant over the allele for white flowers (f).
A certain scarlet rosemallow plant from this group has red flowers.
Based on this scarlet rosemallow plant's phenotype for the flower color trait, which of the following could be its genotype for the flower color gene?
FF, Ff
An organism with a gene GAATCACTG has undergone mutation and is now represented with GATCACTG. What type of mutation has occurred? How do you know?
Deletion