Unit 7 Review
Quiz by Amanda Wood
Feel free to use or edit a copy
includes Teacher and Student dashboards
Measure skillsfrom any curriculum
Measure skills
from any curriculum
Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
With a free account, teachers can
- edit the questions
- save a copy for later
- start a class game
- automatically assign follow-up activities based on students’ scores
- assign as homework
- share a link with colleagues
- print as a bubble sheet
17 questions
Show answers
- Q1The fact that a strain of yeast with a certain defective gene can use the human version of the gene to repair itself is evidence that yeast and humans —have identical genomesshare a genetic codedepend on the same food supplyboth have eukaryotic cells30s
- Q2Which of the following provides growth and development information to cells?deoxyribonucleic acidpolymeraseadenosine triphosphatecell adhesion molecules30s
- Q3DNA molecules separate into single strands which are then used to construct two identical strands of DNA. This process ensures genetic —diversityvariabilityreductionconsistency30s
- Q4The fact that all organisms use DNA for their genetic material is evidence that all organisms —undergo sexual reproductionshare a common ancestorhave been genetically engineeredevolve at the same rate30s
- Q5Organisms can be classified based on homology, which is shared characteristics inherited from a common ancestor. In the past, homologies were based on studies of anatomical structures and patterns of embryonic development. In more recent years, the use of molecular biology techniques has allowed homologies to be compared at the level of nucleotide sequences. Nucleotide sequence comparisons are possible because all organisms share which of the following?Cellular organellesDNA basesDivision of the nuclear chromosomesTypes of proteins needed for cellular functions30s
- Q6Scientists use zebra fish to study human genetic diseases because zebra fish and humans share many of the same genetic diseases.Which statement describes why zebra fish experience similar genetic diseases as humans?Zebra fish go through embryonic stages similar to those of humans.Zebra fish have nucleotide sequences similar to those of humans.Zebra fish have an omnivorous diet similar to that of humans.Zebra fish produce gametes through a process that is similar to that of humans.30s
- Q7Genome maps provide the DNA sequences of chromosomes. Some scientists have compared the genome maps of a hedgehog and a sloth. What do these genome maps allow the scientists to determine?How closely related the two species are to each otherThe methods of protein synthesis that each species usesThe color patterns of the offspring of each speciesHow much the size ranges of the two species differ30s
- Q8Which condition is essential for natural selection to result in a new species?A long life spanAn inherited variationA static environmentUnlimited resources30s
- Q9Some organisms have genes that improve their ability to survive and reproduce. If the genes also help their offspring survive and reproduce, then which of the following will most likely increase?The number of genes in one chromosomeThe frequency of the genes in one individualThe number of genes in the speciesThe frequency of the genes in the population30s
- Q10Which of the following is the best statement about natural selection?Most populations of organisms evolve to become more and more alike, eventually becoming genetic clones.A stable environment and less variations in a population's gene pool promotes evolution of a new species.Some individuals in a population have a variation that gives them an advantage to survive and reproduce.If a population becomes isolated from others, the possibility for mutations to occur decreases and extinction results.30s
- Q11Rabbits normally eat some grass as a food source. In a habitat, a new species of grass is introduced that out-competes most of the original species of grass. The new species of grass contains a chemical that is usually toxic and fatal to most rabbits. Assuming that all rabbits in this habitat will eat some of the new species of grass, how will the presence of the new grass most likely decrease the diversity of the rabbit population in this habitat?Only rabbits that eat less grass will survive.Only rabbits that can find old grass to eat will survive.Only rabbits that are resistant to the chemical will survive.Only rabbits that eat more grass will survive.30s
- Q12The concept of gene flow is demonstrated when a cow is driven off from its herd, joins another herd, and reproduces. When the cow contributes to the gene pool of the new herd, which of these most likely increases?Genetic variationReproductive mutationsEnvironmental fitnessNatural selection30s
- Q13Adaptations that result from natural selection are expected to increase the fitness of an organism. In terms of natural selection, which of the following best describes fitness?Being among the strongest organisms in a populationBeing able to survive, find a mate, and produce offspringBeing able to escape from predatorsBeing able to survive long enough to reach the adult stage30s
- Q14Which scientific concept did Charles Darwin and Alfred Wallace independently discover?natural selectionoverbreedingsexual reproductionmutation30s
- Q15Which situation is most likely an example of convergent evolution?Worms and snakes both move without legs.Some bats and birds have wings that allow them to flySquid and humans have eyes similar in structure.all of the above30s