Font size
WorksheetsMeiosis, Mutations, and Mendel/Nonmendelian Mayhem
Total questions: 150
Worksheet time: 3hrs 45mins
The Law of Segregation occurs in meiosis in
Anaphase 1 when homologous chromosomes separate
Anaphase 2 when homologous chromosomes separate
Anaphase 1 when sister chromatids separate
Anaphase 2 when sister chromatids separate
The Law of Independent Assortment can be seen in
Anaphase 2 when homologous chromosomes separate
Metaphase 1 when homologous chromosomes line up independently on the metaphase plate
Metaphase 2 when sister chromatids line up independently on the metaphase plate
Anaphase 2 when sister chromatids separate
The Law of Independent Assortment means that
gametes will always be half the amount of DNA as somatic cells
every gamete gets equal number of chromosomes
gametes have varying amounts of mom and dad chromosomes
each chromosome in a gamete is a mix of the mom and dad's homologous pair
Body cells are also known as
somatic cells
gametes
haploid cells
sex cells
n : haploid :: 2n :
autosome
sex chromsome
double haploid
diploid
Which of the following is NOT a somatic cell?
sperm
skin cell
blood cell
bone cell
Different alleles can lead to different phenotypes because they make different
DNA
proteins
gametes
chromososmes
A dominant allele makes a protein that masks the protein made by the recessive allele- if the recessive even makes a protein. This means that
all genetic disorders are dominant
all genetic disorders are recessive
the phenotype will always be an expression of the dominant allele
all dominant alleles are mutated versions of recessive alleles
Which is NOT true about alleles for the same gene?
They are always found at the same location (loci) on homologous chromosomes
They are always found at the same location (loci) on sister chromatids
There can only be two of them within an organism
There can only be two of them in a population
Gregor Mendel studied pea plants and created pure breeding strains by
self pollinating them
cross pollinating them
Gregor Mendel focused on
how new alleles are formed and passed on
the properties of complete and incomplete dominance
the laws governing the inheritance of autosomal traits
discerning the steps of meiosis in gamete formation
Courage the Cowardly Dog has 74 chromosomes in his sperm cells. How many does he have in the cells of his taste buds?
37
148
292
19
In Mendel's experiments, his P generation was a cross between
two pure breeding plants with the same phenotypes
two hybrid plants with the same phenotypes
two pure breeding plants that had different phenotypes
a hybrid plant that was self pollinated
Mendel's F1 generation was 100%
pure breeding
homozygous
hybrid
self pollinated
Homozygous can be any of the following except
pure breeding
hybrid
HH
hh
A cell that has two different versions of each kind of chromosome is
monoploid
haploid
diploid
triploid
The genotypic ratio for this punnet square is (B=blue, b=white)
1Bb:1bb
1 Blue: 1 White
3 Blue: 1 White
1BB:2Bb:1bb
The phenotypic ratio for this punnet square is (B=blue, b=white)
1Bb:1bb
1 Blue: 1 White
3 Blue: 1 White
1BB:2Bb:1bb
The pairs of letters on the outside of this punnet square represent
possible parental gametes
possible offspring genotypes
possible parental genotypes
possible parental phenotypes
Gametes have
duplicated chromosomes
homologous chromosomes
one allele per gene
one chromosome per trait
Which is a chromosomal mutation where a piece breaks off and never reattaches?
Frameshift
Point
Inversion
Deletion
Males create gametes that
always have an X
always have a Y
always have an X and Y
can have either an X or Y
A color blind female must have
all color blind daughters
all color blind sons
half color blind sons
half color blind daughters
What type of mutation would NOT create a new allele?
silent
point
missense
nonsense
A monohybrid cross between two heterozygotes would result in
50% hybrids, 50% pure breeding dominants
25% PP, 50% Pp, 25% pp
50% Pp, 25% pp, 25% PP
100% heterozygotes
A phenotype can be
red
aa
AA
heterozygous
The plants in Mendel's P generation were _________________ and their cross resulted in a F1 generation of ___________________ pea plants.
pure breeding, homozygous
homozygous, pure breeding
homozygous, hybrid
hybrid, pure breeding
Mendel's F2 generation had a genotypic ratio of
1:2:1
1:1
3:1
1
Mendel's F2 generation had a phenotypic ratio of
3:1
1:2:1
1
3:4
The hair form gene shows incomplete dominance. Straight hair is dominant, curly hair recessive, and wavy hair is heterozygous. Mr. and Mrs. Anderson both have wavy hair. What are the phenotypic possibilities for their children? You may chose more than one answer.
25% curly
100% wavy
25% straight
50% wavy
Mr. and Mrs. Canady have 8 children. Three of them have attached earlobes (recessive) like their father, and the other five have free earlobes like their mother. What are the genotypes of Mr. and Mrs. Canady? You may select more than one answer.
Mr. Canady: Aa
Mr. Canady: aa
Mrs. Canady: Aa
Mrs. Canady: AA
They are both AA
a photograph or picture of chromosomes grouped in ordered pairs is a ______________
pedigree
Punnett Square
Venn Diagram
Karyotype
A normal human zygote should have _____ chromosomes inside.
46
23
92
64
You are viewing a patients karyotype. You see 23 chromosomes total. There are no homologous chromosomes. Which type of cell are you viewing?
Egg cell
Zygote
Skin cell
White blood cell
Based on the karyotype, what is the sex of this baby?
Male
Female
If the Diploid number for carrots is 18, the haploid number is
18
9
27
36
AGA-TTC-ATA-GCG
Mutant-
AGA-TTC-AAT-AGC-G
T-G-A-C-C-A
T-G-A-G-C-A
Which type of mutation is like squeezing an extra book onto a bookshelf?
insertion
deletion
missense
nonsense
duplication
Which type of mutation is like replacing a book with a bookend on a bookshelf?
insertion
deletion
missense
nonsense
duplication
Which mutations are point mutations?
insertion
deletion
missense
nonsense
duplication
Which types of mutations are frameshift mutations?
insertion
deletion
missense
nonsense
duplication
This punnett square is for what pattern of inheritance?
Complete dominance (mendelian)
Incomplete Dominance
Codominance
Multiple Alleles
This punnett square is for what pattern of inheritance?
Sex-Linked
Incomplete Dominance
Codominance
Multiple Alleles
This punnett square is for what pattern of inheritance?
Sex-Linked
Incomplete Dominance
Codominance
Multiple Alleles
"R" is dominant for red and "r" is recessive for white. How many offspring are red?
3/4
1/4
2/4
4/4
H (curly hair) is incompletely dominant to H' (straight hair). Describe the parents' phenotypes
One has wavy hair, the other has curly hair
They both have wavy hair
They both have straight hair
One has curly hair, the other has straight hair
Which genotype represents a female who is a carrier for hemophilia?
Which genotype represents a male with hemophilia?
Which genotype represents a male with normal vision?
The fact that you can get an allele for height from your maternal grandfather and an allele for skin tone from your maternal grandmother is indicative of the
Law of Dominance
Law of Independent Assortment
Random Fertilization
Law of Segregation
What is the mode of inheritance shown here?
Autosomal Recessive
Autosomal Dominant
Sex Linked Recessive
Sex Linked Dominant
When we say that a woman is a carrier for a genetic disease or disorder it means that
she has 1 allele, but not the disorder
she has 2 allele for the disorder
she can pass the allele only to male children
she can pass the allele only to female children
Four alleles determine if a rabbit is white, brown, or gray. This is an example of _____________ ___________.
polygenic traits
multiple alleles
codominance
According to the Punnett square, what percentage of male offspring will have the disorder?
Height in humans is an example of
incomplete dominance
codominance
multiple alleles
polygenic inheritance
Here are alleles in order of their dominance: T(ten fingers), T5(five fingers), T2(two fingers), T1(one finger). Which genotype would give someone five fingers?
TT5
TT
T5T
T5T2
Here are alleles in order of their dominance: T(ten fingers), T5(five fingers), T2(two fingers), T1(one finger). Which genotype would give someone two fingers?
TT5
T2T
T2T2
T2T5
Here are alleles in order of their dominance: T(ten fingers), T5(five fingers), T2(two fingers), T1(one finger). Which phenotype could someone with one finger have?
TT1
T2T1
T1T1
TT
What type of inheritance could be shown here (choose all that apply)
X linked Dominant
X linked Recessive
Y linked
Autosomal Dominant
What kind of inheritance could this NOT be?
Autosomal Dominant
X linked Dominant
Y linked
Autosomal Recessive
A mother is AAbbCcDd and a father is aaBbCcDD what is the probability that their child will be AaBbCcDd?
1/2
1/6
1/8
1/12
1/16
A mother is AAbbCcDd and a father is aaBbCcDD what is the probability that their child will be AaBbCCDd?
0
1/6
1/8
1/12
1/16
A mother is AAbbCcDd and a father is aaBbCcDD what is the probability that their child will have the same phenotype as the father?
1/2
1/6
3/8
5/12
0
A mother is AAbbCcDd and a father is aaBbCcDD what is the probability that their child will have the same phenotype as the mother?
1/2
5/6
3/8
1/12
0
This is a karyotype of
Turner's Syndrome
Huntington's Disease
Kleinfelter's Syndrome
Monosomy 23
Identify the phase.
Metaphase I
Anaphase I
Prophase I
Anaphase II
A chart showing all possible allele combinations for a particular genetic cross:
Punnett square
genotype
pedigree
karyotype
Alleles for a genetic trait would
be found on nonhomologous chromomosomes in an organism
be found on the same chromosome
be found at the same place on homologous chromosomes
be found on chromosomes that came from the same parent
Homologous chromosomes- like those represented in this karyotype- will have everything the same EXCEPT (chose all that apply)
their genes
their length
their parent of origin
their alleles
their banding patterns
This karyotype is showing
homologous chromosomes with different banding patterns
homologous chromosomes with different alleles
homologous chromosomes that are duplicated
homologous chromosomes in G1
These chromosomes could have been taken from a
gamete
cell in metaphase II
cell in G2
Cell in G1
This is an image of a
translocation
inversion
frameshift
point mutation
This is an image of a
duplication
missense mutation
inversion
deletion
New alleles would most likely arise from
missense mutations
nondisjunctions
chromosomal inversions
Chromosomal deletions
All of the following could create new alleles of a gene except
frameshift mutations
nonsense mutations
missense mutations
the correct answer is all of these would create new versions of a gene
Which of these would be most likely to result in a beneficial mutation and be the better allele
chromosomal insertion
nonsense mutation
missense mutation
point insertion
What would you call the failure of one or more pairs of homologous chromosomes or sister chromatids to separate normally during meiosis?
nondisjunction
anaphase I
nondiploidy
karyotype
Chromosome mutation involving loss or gain of a chromosome in the gametes.
Deletion
Inversion
Translocation
Nondisjunction
Chromosome mutation involving the repeat of a piece of chromosome.
Deletion
Inversion
Translocation
Duplication
Chromosome mutation involving a segment of a chromosome breaking off and flipping before reconnecting.
Deletion
Inversion
Translocation
Duplication
Deletion
Inversion
Translocation
Duplication
Which pair does NOT have the larger item first?
deoxyribose, nucleotide
genome, chromosome
chromosome, gene
nucleotide, phosphate
