Genetics Part 3 Question Preview (ID: 35754)
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The Thad Cochran National Warm Water Aquaculture Center conducts research on genetically modified catfish. Which idea can BEST be used in an argument against this research?
a) Genetically modified catfish may be larger than other catfish.
b) Catfish farming is an important source of income in Mississippi.
c) Catfish farming has faced major challenges in the last few decades.
d) Modified catfish may be a threat to other species in a natural habitat.
The Animal Functional Genomics Laboratory conducts genetic research involving farm animals. The results can be used to genetically modify cattle. Considering the pros and cons of such a research program, those arguing against have concerns about
a) food safety.
b) population control.
c) ecological balance.
d) environmental safety.
When gametes combine to form a zygote, the chromosomes number of the zygote is now referred to as
a) diploid.
b) haploid.
c) monoploid.
d) polyploid.
Where are chromosomes found in an animal cell?
a) inside a gene
b) in the cytoplasm
c) in a strand of DNA
d) inside of the nucleus
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
a) RNA.
b) gametes.
c) genes.
d) traits.
Students were given various animal pictures to observe the animal pictures, and list some characteristics they could use to classify the animals into groups such as vertebrates and invertebrates. What characteristics do all animals have in common?
a) ability to move and eat, and are single-celled
b) ability to move and eat, and are multi-cellular
c) ability to move and fly, and are multi-cellular
d) ability to stand on four legs and eat, and are multi-cellular
Like animals, plants inherit ways of responding to their surroundings. Roots grow down toward water. Stems grow up toward the sun. Leaves grow toward light, and vines may climb up a tree trunk. These traits are passed from parents to offspring by
a) genes.
b) light.
c) surroundings.
d) learned behaviors.
Farmers have been planting genetically modified crops. For example, 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. What is a concern with this?
a) Genetically modified corn, as well as other plants, is unnatural.
b) Corn will replace wheat and other crops as our main source of carbohydrates.
c) Plants with modified genomes may have a predictable impact on the environment.
d) Plants with modified genomes may have an unforeseen impact on the environment.
Scientists have been genetically modifying food crops since the mid 1990's. As a result, scientists have been able to produce crops that are more disease resistant. What could be seen as a risk associated with using genetically modified crops?
a) reduction in nutritional value of the food crop
b) plants can be tailor made for the desired trait
c) crops may cause an increase of allergic reactions in humans
d) crop production would be increased due to greater disease resistance
The inheritance of genetic traits from parents to children follows predictable rules. Knowing that each parent contributes genes equally to each child, what determines an inherited trait such as eye color?
a) Only the interaction between dominant genes.
b) Only the interaction between recessive genes.
c) The interaction between dominant and recessive genes.
d) The interaction between dominant and recessive genes does not determine inherited traits.
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