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WorksheetsGenetics Worksheet Quiz
Total questions: 40
Worksheet time: 36mins
Genetics is the study of
Bacteria
Evolution
Heredity
Reproduction
Brown eyes in humans is a dominant trait. We inherit dominant traits from our parents, some from our mother and some from our father, in the form of ______________.
RNA
Gametes
Dollars
Alleles
According to Mendel's ______________, one copy of a gene is passed randomly from each parent to their offspring. Therefore, gametes have half the usual number of chromosomes. The ______________ states that different genes are not connected. In other words, the gene for eye color is not influenced by, nor does it influence, the gene for hair color. This allows gametes to form with a random mixture of traits. The cell division that creates gametes according to these principles is known as ______________.
Law of Segregation; Law of Dominance; mitosis
Law of Independent Assortment; Law of Segregation; mitosis
Law of Independent Assortment; Law of Segregation; meiosis
Law of Segregation; Law of Independent Assortment; mitosis
Law of segregation; Law of Independent Assortment; meiosis
Using the Punnett square to right, what is the probability of a dominant trait?
0%
25%
75%
100%
Tongue rolling is dominant to the inability to roll one’s tongue. Suppose that Jack, whose genotype is Rr, marries Jill, whose genotype is rr. According to the Punnett square, what fraction of their kids will be unable to roll their tongue?
0/4
¾
1/2
Use the information in the Punnett square to the right to answer the following question. Consider the possible genotypes of the offspring of two heterozygous brown goats. The ratio of brown to white offspring in this case would be?
1:3
2:2
3:1
3:4
Black and white coloration in cows is dominant to brown and white. Black and white cows were crossed over several years and the following offspring were produced: 9 black and white and 3 brown and white. What are the genotypes of the parents?
BB x BB
BB x bb
Bb x bb
Bb x Bb
The gene for red/green colorblindness in humans is sex-linked recessive and primarily affects males. It must be located on
The X chromosome
The Y chromosome
Both the X and Y chromosome
Either the X or Y chromosome
In a cross of two flowers, red, R, is dominant and white, r, is recessive. In a cross between two white-flowered plants, what statement would BEST describe the offspring?
75% of the flowers would be white and the remaining 25% would be red
There would be some variation; most flowers would be white, and a few would be red
There would be no variation in color. All flowers will be white unless a mutation occurred.
Flower color variation would be equally divided given the homozygous parents, half red and half white.
Red flowers (dominant) crossed with white flowers (recessive) can yield pink flowers. Pink is the heterozygous condition in a trait that shows incomplete dominance. If pink flowers are crossed with white flowers, what percentage is expected to be red flowers?
0%
25%
50%
100%
Ms. Smith has a baby named Tyra. She believes one of two men can be the father of her child. A paternity test is done, and the results are shown here. What is the best possible answer?
Male 1
Male 2
Both Male 1 and Male 2
Neither Male 1 nor Male 2
Scientists use artificial pollination to develop new kinds of flowers, fruits, and vegetables. This type of selective breeding produces new varieties called
dicots
hybrids
predators
Monocots
Recombinant DNA technology is used to produce all the following EXCEPT
Human insulin
Cancer fighting drugs
New genetic varieties of plants
Preferred genotypes for human offspring
For over a decade, farmers in the U.S. have been planting genetically modified crops. An example of one of these crops is corn that is resistant to weed killer. This makes it so that no corn is lost due to contact with herbicide meant to kill weeds. While this is seen by many as a positive development, others see it as a cause for concern. What is one possible negative side effect of planting corn that is resistant to weed killer?
Genetically modified corn, as well as other plants, is unnatural
Corn will replace wheat and other crops as our main source of carbohydrates
Plants with modified genomes may have an unforeseen impact on the environment
The resistance gene could transfer to actual weeds, making farming more difficult
Scientists are using DNA fingerprinting to help identify the bodies of those killed in the 9/11 tragedy. Most on-site evidence is in the form of bones or teeth. Yet the evidence supplied by the victims' families may include hair or toothbrushes. How are scientists able to compare DNA from bones or teeth to that found in hairs on a hairbrush?
They cannot and this is making body identification difficult
Each sample provides an exact karyotype for genetic identification
DNA is the same in every cell of the body and does not change over time
The DNA must all come from the hair to be accurate
_____ are different forms of the same gene that are found on the same position of two homologous chromosomes.
Alleles
Chromatids
Loci
Nucleotides
What is the genotype of individual II-3?
AA
Aa
aa
What is the genotype of individual III-4?
AA
Aa
aa
Is the trait illustrated in the pedigree dominant or recessive?
Dominant
Recessive
What is the relationship between individuals I-3 and III-5?
Parent to child
Grandparent to child
Aunt/uncle to niece/nephew
Mr. Megabucks had a theft at his mansion. The investigators have asked you to help in determining which of the 3 suspects completed the crime. Use the DNA Fingerprint to the right to choose the suspect that committed the crime.
Suspect 1
Suspect 2
Suspect 3
In the chart to the right, what is the genotype of III-1?
AA
Aa
aa
Is the trait in the pedigree dominant or recessive?
Dominant
Recessive
Using the punnett square to the right, which is the correct genotype of the parents?
AaBb x AaBB
Aabb x aabb
AaBb x AaBb
aabb x aabb
Which of the following is the function of a lipid?
Immediate energy
Building tissues
Enzymes
Stored energy
During cellular respiration, what are the substances that are taken into the reaction?
Glucose and carbon dioxide
Glucose and oxygen
Water and carbon dioxide
Water and oxygen
Which organelle do prokaryotes and eukaryotes NOT have in common?
Cytoplasm
Cell membrane
Nucleus
Ribosomes
What is one example of a DISADVANTAGE to sexual reproduction?
Genetic variation
Only one parent
Two parents needed
All offspring are identical
What is the function of an enzyme?
Lowers activation energy to speed up chemical reactions
Raises activation energy to speed up reactions
Lowers activation energy to slow down chemical reactions
Raises activation energy to slow down chemical reactions
The result of mitosis is
Two different daughter cells
Four different daughter cells
Two identical daughter cells
Four identical daughter cells
What is the monomer of a protein?
Fatty acid
Amino acid
Monosaccharide
Nucleotide
What type of transport uses proteins to help move molecules across a semipermeable membrane?
Diffusion
Facilitated diffusion
Osmosis
Active transport
During the process of protein synthesis, DNA is converted into RNA during which step?
Transcription
Replication
Translation
Which of the following is an example of a primary consumer?
Tulip
Snake
Hawk
Cow
What would be the complimentary RNA strand to the following DNA strand: AGCTGCATA
CGTCAGTGA
CGTGCCTCAG
UCGACGUAU
UGCUACGAU
Which is the result of meiosis?
Two different daughter cells
Four different daughter cells
Two identical daughter cells
Four identical daughter cells
Which biogeochemical cycle do humans have the largest impact?
Carbon
Water
Nitrogen
Phosphorus
In DNA, Adenine pairs with ________, while in RNA Adenine pairs with ________.
G; C
U; A
T; U
C; U
Which organelles do animals have that plants do not?
Chloroplasts and cell wall
Lysosomes and centrioles
Mitochondria and nuclei
Cytoplasm and vacuoles
How many points is a completed study guide going to give you on the test?
10
6-7
-4
The Treaty of Versailles
