Evolution and Genetics Study Guide
Quiz by Cheryl McLawhorn
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35 questions
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- Q1Peppered moths use the adaptation of camouflage as protection from predators. They may have a variety of colors or shades, but before the Industrial Revolution, they were typically white with black speckles. The Industrial Revolution in the 1880s introduced large-scale pollution into the environment. The pollution resulted in widespread, dark-colored staining of buildings and trees. Which of the following was the most likely effect of the Industrial Revolution on peppered moths in cities?The population of light-colored moths decreased and the population of dark-colored moths increased.Over time, the white, speckled moths were outnumbered by plain white moths.The peppered moths adapted an improved sense of sight and smell.The peppered moths developed a tolerance to smog and chemical waste.120s
- Q2Zainab is in science class, and he is studying an organism that reproduces sexually. The genetic material of the organismwill be passed to its offspring without any changes.is identical to its own genetic material.is a blend of the genetic material of its parents.all of these120s
- Q3Look at the pedigree chart above. The squares are the male members of the family, and the circles are the female members of the family. Squares or circles that are all black are nearsighted members. Squares or circles that are all white have normal vision. Squares or circles that are part black are family members who carry the gene for nearsightedness but are not nearsighted. How many individuals in Generation II of the family have the gene for nearsightedness?6235120s
- Q4An incomplete Punnett square is shown below. What would go in the bottom right box?ttTtTTnot enough information120s
- Q5Sickle-cell anemia is a genetic disorder of the blood in which the shape of red blood cells is distorted, resulting in a variety of health problems. The allele for normal blood cell production (H) is dominant to the allele for sickle cell production (h). If one parent has sickle-cell anemia and the other parent is a carrier, what is the probability that their child will have sickle-cell anemia? Hint: Use the Punnett Square below to help you.25%50%100%75%120s
- Q6The diagram below represents a cell and the genetic material it contains. After this cell undergoes mitosis, what should be the result?one new cell with exact number of chromosomesone new cell with half the number of chromosomestwo new cells with exact number of chromosomestwo new cells with half the number of chromosomes120s
- Q7Organisms typically have more than one form of each gene. If one form can mask the appearance of another form, that form is considered _______ the other form.better thanrecessive todominant overworse than120s
- Q8A (1)_____________________ is a section of a chromosome that codes for a trait. The specific combination of alleles an organism has is called its (2)_____________________________ which affect(s) the organism's (3)________________________________.1. trait, 2. phenotypes, 3. genotype1. gene, 2. trait, 3. genotypegene, genotype, phenotype1. trait, 2. genotype, 3. phenotypes120s
- Q9When a person has too much iron in his or her body, they have a disease called haemochromatosis. Haemochromatosis can be inherited if a person's body just does not handle iron properly. Could haemochromatosis also be caused by someone's environment?yes, if the person eats too much ironyes, if the person becomes allergic to meno, because all diseases are only inherited120s
- Q10Malnutrition occurs when what someone needs to eat is very different from what they actually eat. The usual way of measuring malnutrition is to look at three different ratios: how tall someone is compared to how much they weigh how tall someone is for their age how much someone weighs for their age A malnourished person is usually too skinny compared to their height and is neither tall enough nor heavy enough for their age. If they are given enough food, they may gain weight rapidly until their height/weight ratio becomes a healthy one. If Radhika does not get enough food for the first five years of her life, how would that malnourishment most likely affect her growth?She will stop growing at a later age than she otherwise would have.She will always be too skinny for her height.She will grow up to be shorter than she otherwise would have been.She will grow more slowly than she otherwise would have, but she will reach the same height.120s
- Q11Offspring that are produced through sexual reproduction are usually similar, but never identical, to their parents. This is becausegenes are not transferred between parents and offspring during sexual reproduction.genes mutate during every occurrence of sexual reproduction.half of the offspring's genes come from one parent while the other half comes from the other parent.all of the offspring's genes only come from one parent or the other.120s
- Q12A _______ is a segment of DNA that contains a single unit of information.fossilatomgenemolecule120s
- Q13Last year, Adam and his five friends all bought baby mice from the same litter. When they get together a year later, all of the mice are very similar in appearance. Which of the following is likely the reason that the mice are similar in appearance?nutritiongeneticsdiseaseenvironment120s
- Q14Which of the following are threadlike linear strands of DNA and proteins that carry the genes and functions in the transmission of hereditary information for living organisms?mutationschlorophyllcellschromosomes120s
- Q15If curly hair (C) is a dominant trait, what are the genotypes of the parents in the pedigree?Both parents are heterozygous (Cc) for the curly hair trait.One parent is heterozygous (Cc) for the curly hair trait, and the other parent is homozygous for the curly hair trait (CC).Both parents are homozygous (CC) for the curly hair traitOne parent is homozygous for the curly hair trait (CC), and the other parent is homozygous for non-curly hair (cc).120s
