WorksheetsSect 8.4 - 8.9 Quiz for ck12
Total questions: 25
Worksheet time: 17mins
Different versions of a gene are called _____.
Alleles
Chromosomes
Homologous
Traits
The allele that masks the other allele when it is present is the _____ allele.
Recessive
Homologous
Heterozygous
Dominant
Alleles inherited from parents are referred to as _____. (3)
Maternal (mother)
Paternal (father)
Genotype
Phenotype
When factored or distributed TtRr will produce how many different sets of alleles?
One
Two
Three
Four
A box in a monohybrid cross represents _____. (2)
6.25%
multiple offspring
25%
one offspring
Gene loci that are _____ are more likely to be _____. (2)
far apart
close together
inherited together
inherited without crossover
on separate chromosomes
Which of the following statements are true regarding probability? (3)
Works best with small numbers
Works best with large numbers
Is defined as the likelihood that an event will occur
Works best with traits that are not linked
Is the number of times that an event will occur
Probability can be expressed in which of the following ways? (3)
A fraction
An exact number
A percentage
A ratio
A statement that is always true
Which of the following statements are true about test crosses? (3)
They help us determine the genotype of the parents involved in the cross
They are used to figure out the genotype of the Offspring in the cross
They always involve breeding with a homozygous recessive in the cross
If any recessive Offspring occur we know the parent had to be heterozygous
If any recessive Offspring occur we know the parent had to be homozygous
Which of the following statements are true about dihybrid crosses? (2)
They help track a single trait
They involve a 16 box Punnett Square
They represent four alleles
They help us track two traits at the same time
They use a 4 box Punnett Square
Organisms who have a pair of identical alleles are said to be _____. (2)
Homozygous
Heterozygous
Homozygotes
Heterozygotes
Organisms that have one dominant and one recessive allele are said to be _____. (3)
Homozygous
Heterozygous
Homozygotes
Heterozygotes
Hybrids
Which of the following are genetic disorders or severe human phenotypes? (3)
Widow's peak
Cystic fibrosis
Hypercholesterolemia
Mid digit hair
Sickle cell anemia
Which of the following human traits can be expressed with mendelian genetics? (2)
Skin color
Eye color
Hitchhiker's thumb
Free hanging earlobes
Height
Which of the following statements are true of dihybrid crosses? (3)
Each box is 6.25%
They start with four alleles
Each box is 25%
They start with 8 alleles
The parents alleles require factoring or distributing to determine their gametes
When one gene is dependent on another Gene for expression it is called _____.
Test cross
Epistasis
Crossover
Epistaxis
Which of the following is a possible gamete combination for the parent TtRr? (Factor it) (3)
TR
tr
tR
Tt
Rr
Which of the following is true of the cross TtRr x ttrr? (2)
It can produce Offspring with recessive phenotypes
It can produce Offspring with dominant phenotypes
All Offspring will be homozygous
All Offspring will be heterozygous
A monohybrid Punnett Square will be used
Which of the following is true regarding Gregor Mendel? (2)
He came up with the Punnett Square
He was instantly accepted by his peers for the science that he had done
He was the first to apply math to biology
He worked with dihybrid crosses
He worked with monohybrid crosses
Which of the following statements are true regarding mendelian genetics? (2)
It involved both dominant and recessive alleles
It involved only single Gene traits
He used Punnett squares to show how math applied to biology
He knew it would apply to things like skin color, hair color, and height
His pea plants showed codominance and incomplete dominance for certain traits
Which statements are correct for crossing and tracking 2 characteristics at the same time? (3)
If we start with true breeding parents, the f1 generation are all the same hybrids.
It is called a dihybrid cross.
It is called a monohybrid cross.
It uses a 4 box Punnett Square.
The f2 generation will show a 9:3:3:1 ratio for the two characteristics.
Which of the following is one of Mendel's Theory of Inheritance statements? (4)
When gametes are formed, the 2 alleles of each gene are separated.
When 2 different alleles are inherited together, one may be expressed while the other is silenced.
For each characteristic an organism inherits 2 alleles, one from each parent.
There are different versions of a gene.
Each resulting gamete has an equal probability or chance of receiving either of the 2 alleles.
Which of the following is an event that happens during prophase that results in new combinations of genes that did not exist before?
Law of Independent Assortment
crossover
fertilization
Law of Segregation
Law of Dominance
Which of the following are part of Mendel's Laws governing Genetics? (3)
Law of Characteristics and Traits
Law of Independent Assortment
Law of Dominance
Law of Segregation
Law of Probability
What is the probability of having 3 girls in a row for children?
1/2
1/4
1/8
1/16
