Download - Genetics
GeneticsGeneticsGeneticsGeneticsWith your FAVORITE HOST…With your FAVORITE HOST…
Ms. IngsMs. Ings
If a boy is colorblind, he inherited it from…
• A) His mother• B) His father• C) Both his mother and father• D) Unable to determine
Your phenotype is based on
• A) Your DNA• B) Your Genotype• C) Your Environment• D) Both DNA and Environment
A man with Achondroplasia (whose mother was normal) marries a female that is normal. What is the chance of
having a child with this disorder?
• A. 0%• B. 25%• C. 75%• D. 50%
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
Independent assortment and crossing over increase
• A) The number of offspring• B) Genetic Linkage• C) Sex-linked traits• D) Genetic Diversity
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
Explain how this happens.
For a female to have hemophilia, she must
have
• A) a Y chromosome• B) at least one dominant allele• C) two recessive alleles• D) two dominant alleles
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 Deterine
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
Cystic Fibrosis is a recessive disorder. Resulting in the
following symptoms.• Fill in the blank.
The alleles from your mother and father separating into
different gametes is seen in
• A) Law of Dominance• B) Co-Dominance• C) Law of Independent Assortment• D) Law of Segregation
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
F2:F1 :: F1:___
• A) F2• B) P2• C) P• D) F1
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 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
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
A man with hemophilia marries a woman that is a carrier. What
percent of their sons will have it?
• A) 0%• B) 25%• C) 50%• D) 100%
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
BbRr x BbRr are crossed. What are the phenotype
ratio of the offspring?
• A) 3:1• B) 1:2:1• C) 1:1:1:1• D) 9:3:3:1
What is the pattern of inheritance for this pedigree?
• A) Dominant• B) Recessive• C) Sex Linked• D) Cannot Determine
Parents, one heterozygous for two traits and the other homozygous
recessive for two traits, produce_______ offspring that are homozygous dominant for both
traits • A) 100%• B) 75%• C) 25%• D) 0%
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
Which of the following is a dominant trait?
• A) Ability to taste PTC• B) Hitchhikers thumb• C) Cystic Fibrosis • D) Albinism
In a pedigree, a circle represents a …
• A) Child• B) Parent• C) Male• D) Female
When an organism has a heterozygous genotype, the
dominant trait is seen. This can be explained by …
• A) Law of Dominance• B) Law of Segregation• C) Law of Independent Assortment • D) Law of Combination of Traits
A person has a widow’s peak. All of the following EXCEPT ____ can be the
genotype.
• A) WW• B) Ww• C) W_• D) ww