Biol 1001 Final LSUE Fontenot Latest Update 2024-2025 100 Questions and 100% Verified Correct Answers Graded A+
A benign tumor differs from a malignant tumor in that a benign tumor - CORRECT
ANSWER: does not metastasize.
A carrier of a genetic disorder who does not show symptoms is most likely to be _____ to transmit it to offspring - CORRECT ANSWER: heterozygous for the trait and able
A karyotype is most like - CORRECT ANSWER: photographs of every couple at a high school prom.
A mature ovary, specialized as a vessel that houses and protects seeds is a -
CORRECT ANSWER: fruit
a pair of sex chromosomes found in a male is most like - CORRECT ANSWER: a bride and groom
A physiologist is a biologist who studies - CORRECT ANSWER: function of body parts
A population is - CORRECT ANSWER: a group of individuals of the same species that live in the same area and interbreed
A testcross is - CORRECT ANSWER: a mating between an individual of unknown
genotype and an individual heterozygous recessive for the trait of interest
A vascular cambium cell divides to produce an inner and an outer daughter cell. Which of the following choices represents a possible fate for these cells? - CORRECT
ANSWER: THE INNER CELL DIFFERENTIATES INTO XYLEM, AND THE OUTER
CELL DIVIDES AGAIN
A woman has been trying to conceive for several years, unsuccessfully. At a fertility clinic, they discover that she has blocked fallopian tubes. Using modern technologies, some of her eggs are removed, fertilized with her husband's sperm, and implanted into her uterus. The procedure is successful, but the couple discovers that their new son is color-blind and has blood type O. The woman claims that the child can't be theirs since she has blood type A and her husband has type B. Also, neither parent is color-blind, although one grandparent (the woman's father) is also color-blind. - CORRECT ANSWER: each parent could have contributed one recessive allele, resulting in type O blood.
A woman struggling with a bacterial illness is prescribed a month's supply of a potent antibiotic. She takes the antibiotic for about two weeks and feels much better. Should 1 / 2
she save the remaining two-week supply, or should she continue taking the drug? -
CORRECT ANSWER: She should continue taking the drug until her immune system
can completely eliminate the infection. Otherwise the remaining bacteria in her system may recover, and they will probably be resistant.
A woody plant goes through 5 years of drought followed by 5 years of good growing conditions. The xylem cells formed during the 5 good years will - CORRECT ANSWER: be thicker than thoes formed during the drought years
A woody plant goes through 5 years of drought followed by 5 years of good growing conditions. The xylem cells formed during the 5 good years will - CORRECT ANSWER: be thicker than those formed during the drought years
After a copper smelter begins operation, local downwind populations of plants begin to adapt to the resulting air pollution. Scientists document, for example, that the acid tolerance of several plant species has increased significantly in the polluted area. This
is an example of - CORRECT ANSWER: directional selection
Any change in the nucleotide sequene of DNA is called - CORRECT ANSWER: a
mutation
Assume you have scratched a mosquito bite and, in the process, damaged some of your stratified squamous epithelial cells. What will happen? - CORRECT ANSWER: The cells near the base of the epithelium will rapidly replicate to replace the damaged cells.
Blue-footed boobies have webbed feet and are comically clumsy when they walk on land. Evolutionary scientists view these feet as - CORRECT ANSWER: the outcome of a trade-off: Webbed feet perform poorly on land, but are very helpful in diving for food.
Broccoli, cabbages, and Brussels sprouts all descend from the same wild mustard and can still interbreed. These varieties were produced by - CORRECT ANSWER: artificial selection
cancer is not usually inherited because - CORRECT ANSWER: the chromosomal
changes in cancer are usually confined to somatic cells
Conjugation transformation and transduction are all ways that bacteria - CORRECT
ANSWER: increase their genetic diversity.
Consider the following sentence: "The dog did not eat." Which of the following variations of this sentence is most like a frameshift mutation? - CORRECT ANSWER: The doe did not eat.
Desert pupfish live in springs of the American Southwest. Today there are about 30 species of pupfish, but they all evolved from a common Pleistocene ancestor. The southwestern United States was once much wetter than it is now, and the Pleistocene
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