WorksheetsBiology STAAR Review - Reporting Category 2
Total questions: 10
Worksheet time: 5mins
Which of these shows an example of an insertion mutation?
A
B
C
D
A model of the genetic control of coat color in rabbits is shown.
Which Punnett square represents a cross that would produce albino offspring?
A model of transcription and a codon chart are shown.
Which amino acid would be coded first from the DNA strand being transcribed?
Cys
Phe
Ile
Met
A cellular process is shown.
Which of these is the most likely result of the process shown in the diagram?
Chromosome replication will cease to avoid errors that result in mutations.
Offspring will no longer express traits from previous generations.
Gametes will contain new allele combinations.
Chromatids will have less genetic variety.
What components make up the backbone of a DNA molecule?
Purines and deoxyribose
Pyrimidines and purines
Deoxyribose and phosphate groups
Phosphate groups and pyrimidines
Which statement best describes a similarity among trees, cats, and amoebas?
They are prokaryotic organisms.
They are classified as members of the same kingdom.
They have genomes that consist of the same number of genes.
They contain DNA composed of the same four types of nucleotides.
A model of DNA is shown.
Which part of the DNA model is most directly associated with the coding of genetic information?
In domesticated dogs, hair type is controlled by two different alleles. The allele for wire hair is (H) and the allele for smooth hair is (h).
When two heterozygous dogs are crossed, what percentage of the offspring is expected to be homozygous for smooth hair?
0%
25%
50%
75%
Which statements explain how a mutation in a somatic cell is different from a mutation that occurs in gametes?
Somatic cell mutations occur in cells that give rise to gametes. Gamete mutations occur in cells that result in apoptosis.
Somatic cell mutations are maintained in the gene pool. Gamete mutations are expelled from the gene pool.
Somatic cell mutations are generally not passed to offspring. Gamete mutations are usually passed to offspring.
Somatic cell mutations will not be expressed by the individual that contains the mutation. Gamete mutations will be expressed by the individual.
E. coli has three genes that each code for different enzymes that break down lactose. Scientists conducted investigations about the production of these enzymes using samples of E. coli. Their results are shown in the table.
Which conclusion about the production of the enzymes can be determined by analyzing the scientists’ results?
Gene expression for the enzymes was controlled by the temperature of lactose.
The genes for the enzymes were expressed in equal amounts during both experiments.
Gene expression for the enzymes was controlled by the presence of lactose.
The genes for the enzymes were mutated before being expressed by the presence of lactose.
