WorksheetsGenetics and Heredity Quiz
Total questions: 50
Worksheet time: 37mins
In Y-linked inheritance, who passes the Y-linked genes?
Mother to daughter
Father to daughter
Father to son
Mother to son
What is the role of the father in Y-linked inheritance?
Passes X-linked genes
Passes Y-linked genes
Passes mitochondrial DNA
Passes autosomal genes
Where are genes located?
On the cell membrane
In the cytoplasm
On the chromosomes
In the mitochondria
What are homologous pairs?
Matching genes from both parents
Identical chromosomes from one parent
Randomly assorted genes
Non-matching genes from both parents
What is the term for a gene pair that is TT?
Heterozygous dominant
Homozygous dominant
Homozygous recessive
Heterozygous recessive
What is an example of a physical trait that can be a phenotype?
TT
Gg
Straight thumb
gg
What does the term 'filial' refer to in genetics?
Parental generation
Offspring generation
Original generation
Final generation
Which generation is not directly mentioned in the text?
P generation
F1 generation
F2 generation
F3 generation
What is a monohybrid cross?
A cross involving two traits
A cross involving one trait
A cross involving three traits
A cross involving no traits
What is the phenotype of a rabbit with the genotype bbHh?
Brown and straight hair
Black and straight hair
Brown and curly hair
Black and curly hair
What is the likelihood of this cross have a child that is colorblind?
100%
75%
50%
25%
The following punnett square depicts the x-linked cross of a female who carries hemophilia with a man showing no symptoms. Fill in the genootype represented by the blank box in the punnett square.
XH XH
Xh XH
XH Y
Xh Y
Colorblindness is more common in males than in females because......
fathers pass the allele for colorblindness to their sons only
the allele for colorblindness is located on the Y chromosome
the allele for colorblindness is recessive and located on the X chromosome
males who are colorblind have two copies of the allele for colorblindness
What is the study of how traits are passed from parents to offspring called?
genetics
heredity
inheritance
evolution
Who is considered the father of modern genetics?
Charles Darwin
Gregor Mendel
Isaac Newton
Albert Einstein
What is the term for the different forms of a gene?
proteins
enzymes
chromosomes
alleles
What is the term for the physical characteristics of an organism?
DNA
chromosome
genotype
phenotype
What is the term for the genetic makeup of an organism?
allele
genotype
chromosome
phenotype
What is the term for the genetic makeup of an organism for a particular trait?
phenotype
allele
chromosome
genotype
What is the term for the observable traits of an organism?
allele
genotype
chromosome
phenotype
What is the term for the pattern of inheritance where both alleles are considered dominant and the heterozygous genotype results in seeing both traits ?
codominance
recessive
dominance
incomplete dominance
What is the term for the pattern of inheritance where one allele is dominant over the other?
recessive inheritance
incomplete dominance
co-dominant inheritance
dominant inheritance
What is the term for the inheritance pattern where the heterozygous phenotype results in the blending of traits?
codominance
incomplete dominance
dominant inheritance
recessive inheritance
What is the term for a segment of DNA that determines a particular trait?
chromosome
allele
gene
genotype
A genotype having two different alleles such a Aa, Bb.
Homozygous
Gene
Allele
Heterozygous
A genotype that has two of the same alleles such as AA, aa, BB, bb.
Homozygous
Genotype
Codominant
Heterozygous
Which allele is represented by a lowercase letter and may be covered or masked by another allele?
Law of independent assortment
Incomplete dominance
Recessive
Dominant
Which one of Mendel's principles states that each trait is inherited independently of the others?
Law of dominance
Law of segregation
Law of independent assortment
Polygenic traits are traits that are determined by many genes and have a wide range of phenotypes such as skin color and eye color.
True
False
If a trait is X-linked, who is more commonly affected than females?
Males
Females
Both are equally affected
None of the above
What do pedigrees give a visual of?
Genetic makeup
RNA composition
Inheritance patterns of particular traits
Phenotypic ratios
What is the probability of a child having green eyes if both parents are heterozygous for eye color?
25%
50%
75%
100%
What is the probability of a child having blue eyes if both parents are homozygous for eye color?
100%
75%
50%
25%
What is the ratio of dominant to recessive outcomes if both parents are heterozygous for eye color?
4:0
2:2
1:3
3:1
What is the probability of a child having brown hair if both parents are heterozygous for hair color?
25%
100%
75%
50%
What is a punnett square used for?
To organize all the possible combinations of offspring from particular parents
To study genetic mutations
To determine the physical appearance of an organism
To analyze the genetic makeup of an organism
What is heredity?
The process of DNA replication
The study of genetic disorders
The development of new genetic traits
The passing of traits from parents to offspring
In the punnett square, what is the probability for white fur?
T = tall t = short
In the punnett square below, what belongs in the missing square with the question mark (?)
TT
Tt
tt
Determine the correct genotype for box 4.
(a)
Free earlobes, red hair
attached earlobes, non-red hair
Free earlobes, non-red hair
Attacched earlobes, red hair
Free earlobes, red hair
Attached earlobes, red hair
Free earlobes, non-red hair
Attached earlobes, non-red hair
Punnett Square #1
In plants tall is dominant to short.
Cross two heterozygous plants.
What is the phenotypic ratio?
25%: 50%: 25%
50%: 50%
75%: 25%
