Post on 01-Apr-2015
GeneticsGeneticsGeneticsGeneticsWith your FAVORITE HOST…With your FAVORITE HOST…
Mrs. EinsteinMrs. Einstein
Colorblindness is an example of
• A) X Linked Recessive • B) Codominance• C) Incomplete Dominance• D) Multiple Alleles
If you crossed two heterozygous individuals, their
offspring would have• A) 0% Homozygous recessive• B) 25% Heterozygous• C) 75% Dominant Phenotype• D) 50% Recessive Phenotype
Genes located on the X or Y chromosomes are referred to as
• A) Alleles• B) Recessive• C) Sex-linked • D) Autosomal
Blood types is an example of…
• 1. Codominance 2. incomplete dominance 3. polygenetic 4. multiple alleles
• A. 1• B. 1, 2• C. 2, 3• D. 1, 4
A Red flower is crossed with a white flower, the offspring are
pink, this is an example of
• A) Co-Dominance• B) Incomplete Dominance• C) Sex-linked • D) Multiple Genes
Using this pedigree, individuals with the arrows
are
• A) Heterozygous• B) Homozygous Dominant• C) Homozygous Recessive• D) Genotype unknown
A person with type A marries a person with type O. Which of
following could be an offspring?
• A. Type O• B. Type B• C. Type AB• D. Cannot Determine
Roan cows are an example of
• A) Co-Dominance• B) Incomplete Dominance• C) Sex-linked • D) Multiple Genes
Most human traits are …
• A) Dominant• B) Recessive• C) Either Dominant or Recessive• D)
Complex and still not fully understood
Number 2 is
• A) Homozygous dominant• B) Heterozygous• C) Sex-linked • D) Homozygous Recessive
1 2
3 4
E E
e
E
Two parents have the genotype Gg for a dominant genetic disorder.
What are the chances their offspring will have the disorder?
• A) 25%• B) 50%• C) 75%• D) 100%
An individual who is heterozygous for a ______ disorder is called a carrier.
• A) Allele• B) Albinism• C) Recessive• D) Dominant
Seed color and pod size are examples of
• A) Genotypes• B) Phenotypes• C) Heterozygous• D) Heredity
The ______ can only result in one _____.
• A) Trait, Allele• B) Genotype, phenotype• C) Phenotype, Allele• D) Phenotype, Genotype
Both parents have widow’s peak. Their children should
have…
• A) All Widow’s peak• B) No Widow’s peak• C)
Half widow’s peak and half no widow’s peak
• D) Not enough information
This diagram demonstrates
• A) Test Cross• B) Pedigree• C) Dihybrid Cross• D) Karyotype
II4 is what relation to III3?• A) Aunt• B) Father• C) Uncle• D) Nephew
For two heterozygous individuals the phenotype ratio is _____ and the genotype
ratio is _____.
• A) 3:1, 1:2:1• B) 1:2:1, 2:2• C) 1:1, 3:1• D) 3:1, 2:2
If a family has 4 girls (like mine!), what are the chances of their next
child being a boy?
• A) 0%• B) 25%• C) 50%• D) 100%
Mendel’s discoveries came from his…
• A) Careful microscopic evaluation of chromosomes and genes
• B) Dissections on how fertilization occurs in pea plants
• C) Breeding experiments with many generations of fruit flies
• D) Analysis of offspring from several crosses of pea plants
Alternate forms of a gene are called _______.
• A) Traits• B) Alleles• C) Chromosomes• D) Heredity
Which of the following has a heterozygous genotype?
• A) RR• B) rr• C) Rr• D) Rg
On average there are more color blind males because
• A. Women need two alleles to be colorblind
• B. Men require two alleles to be colorblind• C. Women have two X chromosomes and
it is inherited on the Y chromosome• D. Men are more likely due to chance
Two roan cows are crossed. What are the phenotype ratio of
the offspring?
• A) 3:1• B) 75%:25%• C) 50% : 50%• D) 1:2:1
What is the pattern of inheritance for this pedigree?
• A) Dominant• B) Recessive• C) Sex Linked• D) Cannot Determine
If a girl is colorblind, …
• A) Her mother must be colorblind• B) Her father cannot be colorblind• C) Her mother cannot be colorblind• D) Her father is colorblind
Straight hair is recessive and curly hair is dominant. In co-dominance, the heterozygous condition would be
• A) Curly• B) Straight• C) Wavy• D) Some straight hairs, some wavy
hairs
In a pedigree, a circle represents a …
• A) Child• B) Parent• C) Male• D) Female
A person has a widow’s peak. All of the following EXCEPT ____ can be the
genotype.
• A) WW• B) Ww• C) W_• D) ww
If a person has type AB blood and marries a man with type A. Which
of the following could NOT be a possible genotype of the offspring?
• A. Type A• B. Type AB• C. Type O• D. Type B