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WorksheetsGenetics Review (Unit 4 Test Review)
Total questions: 58
Worksheet time: 2hrs 32mins
Rr X Rr
B = short
b = long
What would the cross be for two heterozygous guinea pigs?
What is the genotype ratio for the following cross?
Nn X NN
What goes in box 15
aabb
AABB
aaBB
AAbb
Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?
9/16
3/16
1/16
16/16
Which of the following traits is controlled by multiple alleles in humans?
Blood Type
Albinism
Color Blindness
Which of the following patterns can result in an intermediate trait, such as pink flowers when crossing red and white flowers.
Sex-linked Alleles
Complete Dominance
Incomplete Dominance
Co-Dominance
How is it possible that a child inherits a trait that the parents do not display?
Parents are Homozygous Dominant
Parents are Homozygous Recessive
Parents are Heterozygous, but only show the recessive trait
Parents are Heterozygous, but only show the dominant trait
Sex-linked genetic disorders are more commonly expressed in males.
True
False
Which of the following describes when an organism shows both traits equally at the same time, no blending? Example: AB blood type or Roan horse
Complete Dominance
Incomplete Dominance
Co-Dominance
Sex-Linked
incomplete dominance
codominance
polygenic inheritance
complete dominance
0%
25%
50%
100%
Each cell has multiple copies of DNA that are affected in different ways by the environment to change the function of the cell at regular intervals.
Each cell type contains only the active parts of the DNA needed for that cell type
Each cell type has only one chromosome containing the DNA needed for that cell type.
Each cell has an identical copy of DNA with enzymes controlling the expression of specific genes, leading to a variety of cells.
Each cell has multiple copies of DNA that are affected in different ways by the environment to change the function of the cell at regular intervals.
In cattle the allele for cloven hooves (H) is dominant over the allele for mule-foot hooves (h).
What is the probability of cloven hooves in the offspring of parents that are heterozygous for the trait?
Enter just the number in the box.
(a)
In Holstein cattle the allele for black hair color (B) is dominant over the allele for red hair color (b), and the allele for polled (P), or lacking horns, is dominant over the allele for having horns (p).
What is the expected phenotypic ratio of the offspring of a BbPp × BbPp cross if these alleles sort independently?
Format- __:__:__:__
(a)
Which statement best explains why people with cancer due to asbestos exposure do not pass the mutation on to their offspring?
The mutation occurred in gametic cells.
The mutation occurred in somatic cells.
The mutation is recessive.
The mutation is sex-linked.
Which of these mutations most likely results in the mutated hemoglobin gene?
A (a) and a (b)
Which process occurs the same number of times in both mitosis and meiosis?
The DNA in chromosomes is copied
The cell splits into two equal-size halves
The cytoplasm divided evenly among cells
The chromosomes move to opposite ends of the cell
Compared with mitosis, the process of meiosis results in daughter cells that are
Diploid cells with the same number of chromosomes as the parent cells
Diploid cells with a smaller number of chromosomes that the parent cells
Haploid cells with the same number of chromosomes as the parent cells
Haploid cells with a smaller number of chromosomes than the parent cells
A (a) occurs when a portion of the gene is taken out.
A (b) occurs when a part of the gene breaks off and attaches to another gene.
A (c) occurs when a part of the gene is flipped in the opposite direction.
A mutation in DNA deletes a guanine as shown below.
Original DNA sequence: TATGAACTGGAA
Mutated DNA sequence: TATAATTGGAA
Compared to a protein produced by the original DNA sequence, a protein produced by the mutated sequence will differ in –
a single amino aci
all amino acids that come after the mutation
the amino acids that come before the mutation
all of the amino acids
Which of the following mutations would change the amino acid sequence of a protein?
CGA mutated to CGC
GCA mutated to GTA
AAT mutated to GAA
ATA mutated to ATG
Enzyme that breaks hydrogen bonds (unzips)
Ligase
Polymerase
Primase
Helicase
DNA strand has the following bases AAGCCA what are the bases on the complementary strand
GGCTTA
TTGGGA
CCAGGT
TTCGGT
Which of the following is the blueprint for the production of RNA within a cell?
DNA
protein
carbohydrate
Label the Model of Transcription
RNA
DNA
RNA Polymerase
(a) is the process of creating a small messenger (b) that can leave the (c) and reach the ribosome to make (d) .
Uracil
Thymine
one backbone
double-backbone
ribose
deoxyribose
inside nucleus
inside / outside nucleus
MET is know as the __________ codon.
stop
main
start
most common
Select the RNA sequence or sequences for Glutamine.
CGU
CAG
CUA
CAA
Find the amino acid that this segment of DNA codes for: GAC
Leucine
Serine
Aspartic Acid
Histine
A codon is a group of ___ RNA bases.
1
3
5
6
Proteins are mode of
nucleotides
glucose
fatty acids
amino acids
Crossing over usually occurs between:
Sister Chromatids
Homologous Chromosomes
Alleles
Non-Homologous Chromosomes
A diploid cell...
has 1/2 the amount of chromosomes
has the normal amount of chromosomes (46)
is represented by (n) in meiosis
How many daughter cells are made at the end of Meiosis ll?
2
4
6
8
Cystic Fibrosis is a recessive trait. Which genotype(s) will not have cystic fibrosis? Pick two.
CC
Cc
cc
Cystic Fibrosis is a recessive trait. What is the genotype of Sally?
CC
Cc
cc
Cystic Fibrosis
Normal
Click on the affected female in generation III.
