IMPORTANT NOTES: You are required to complete at least two EOC assignments. If you score an 80% or higher, you will receive +10 pts on those first two EOC assignments. (Note: If you complete additional EOC assignments, then you can earn +5pts for each one if you score 80% or higher).
DO NOT SUBMIT IF YOU ARE UNSURE OR HAVE QUESTIONS. Please use your notes and ask questions as needed.
IMPORTANT NOTES: You are required to complete at least two EOC assignments. If you score an 80% or higher, you will receive +10 pts on those first two EOC assignments. (Note: If you complete additional EOC assignments, then you can earn +5pts for each one if you score 80% or higher).
DO NOT SUBMIT IF YOU ARE UNSURE OR HAVE QUESTIONS. Please use your notes and ask questions as needed.
Genes for medically important proteins can be cloned and inserted into bacteria, as shown in the diagram above. Why can bacteria recognize a human gene and then produce a human protein?
Alleles for the A and B blood cell antigens are codominant. The condition where no antigens are present on the blood cells (type O blood) is a recessive trait and therefore occurs only in individuals who are homozygous recessive. Which set of parents can have a child with type O blood?
The diagram above depicts a diploid cell containing two pairs of homologous chromosomes. Assume that the cell undergoes meiosis. Given the law of independent assortment, what would be the possible genotypes of the gametes that result from meiosis?
In guinea pigs, black coat color (B) is dominant over white coat color (b) and short hair (S) is dominant over long hair (s). Based upon the dihybrid cross shown below, what is the genotype and phenotype for the offspring represented by the letter X?
What is the relationship between the structures depicted in the diagram above?
If 20% of a DNA sample is made up of thymine, what percentage of the sample is made up of cytosine?
Four different segments of a DNA molecule are represented above. In which segment(s) has an error occurred?
A diagram of a cellular processes is shown above. Which of the following terms correctly identifies the process shown at point Z?
During transcription, DNA base sequences are transcribed into complimentary mRNA sequences. A codon table like the one shown above indicates the amino acids coded for by particular triplets (codons) of mRNA bases.
A segment of DNA has undergone a substitution mutation in which one nucleotide has been changed. The complementary mRNA codon was originally ACG, but after the mutation the new codon is ACA. Use the chart above to determine whether or not this mutation will cause a change in the phenotype of the organism.
Which row in the chart above indicates the correctly matches each event with its associated cell division process?
Which cellular process is illustrated by the diagram above?
The diagram above illustrates an event called "crossing over" that commonly occurs during Meiosis I. Based on the diagram, which of the following statements best describes the important effect that this event has on the gametes produced by meiosis?
Genetic engineering has both positive and negative outcomes. One of the most common areas where genetic engineering is used is in agriculture. If farmers plant more genetically modified crops, which of the following negative outcomes could occur?
Rice, the most popular food crop in the world, can be successfully grown only in certain places. If trends in climate change continue, the areas in which rice currently grows will be significantly reduced. Which of the following is the best way that biotechnology can keep the harvest of rice from decreasing?
Rasheed crossed plants that were heterozygous—have two different alleles—for the traits of flower color, seed color, and seed shape as part of an investigation designed to verify the results of Gregor Mendel’s experiments. The table above displays the results.
Based on the information in the table, which of the following is a valid conclusion?
For a certain animal, black fur color is dominant over brown fur color. The pedigree below shows a cross between two individuals that have black fur. Which of the following must be true?
Cancer is often characterized by tumors. Which would most likely trigger the formation of a tumor?
The diagram shows an incomplete pedigree for the inheritance of an autosomal dominant trait (G). With autosomal dominant traits, only one copy of the gene is needed for the trait to be inherited and expressed by offspring.
Move the shapes to complete the pedigree based the inheritance patterns for an autosomal dominant trait. (Each option will only be used once.)
This Punnett square shows the inheritance of flower color in snapdragon flowers.
Use the drop-down menus to explain the inheritance of flower color in snapdragons:
"The alleles for flower color show because both alleles are in individuals."
Today, the common type of banana we buy and eat is a Cavendish banana. They arose from chance mutants that were produced sexually from wild banana plants. The Cavendish banana is infertile and can only be produced by cloning from root shoots. Large commercial growers worldwide now plant only the mutant type. Some information about both types of bananas is recorded in the table.
Why are scientists warning that exclusively growing this mutant type by asexual reproduction presents a serious disadvantage?
Supports Claim 1 | Supports Claim 2 | Does not support either claim | |
|---|---|---|---|
Deletions during replication are passed to daughter cells. | |||
Daughter cells have too much or too little genetic material. | |||
Daughter cells are all haploid but are not genetically identical. | |||
Homologous chromosomes exchange genetic material during meiosis. | |||
Heritable mutations caused by environmental factors result in the loss of entire chromosomes. | |||
Homologous chromosomes separate incorrectly, producing daughter cells with unequal amounts of genetic material. |
A student is investigating genetic variation in chromosomes. The diagram shows two ways that meiosis can result in genetic variation.
The student makes two claims:
Claim 1: Genetic variation in Example 1 is a result of nondisjunction.
Claim 2: Genetic variation in Example 2 is a result of crossing over.
Six pieces of evidence are listed below. For each one, decide whether it is evidence that supports Claim 1, evidence that supports Claim 2, or evidence that does not support either claim.
