BioSemExam Part 4 Question Preview (ID: 34469)

a) It shows that organisms from the same species have similar DNA

b) It shows that organisms from different species have similar DNA

c) It shows that organisms from different species have similar developmental patterns

d) It shows that organisms from the same species have similar developmental patterns

a) resistance to a virus

b) formation of cancer cells

c) inability to undergo sexual reproduction

d) stopping the production of an essential protein

a) changes in allele frequencies in random generations

b) changes in allele frequencies in successive generations

c) changes in chromosomal frequencies in random generations

d) changes in chromosomal frequencies in successive generations

a) Fruit without seeds

b) Albinism

c) Presence of dimples

d) All of the above

a) What is the role of DNA in the inheritance of traits?

b) What causes populations of organisms to change over time?

c) What are the patterns of heredity in sexually reproducing organisms?

d) What happens to beneficial traits when populations undergo natural selection?

a) Species are fixed and do no change

b) Species are moving toward perfection

c) Organisms best suited to their environment survive and reproduce

d) The use or disuse of an organ determines its appearance in a species

a) A female peacock has brightly colored feathers, therefore attracting a mate more easily

b) A population of humans develops a darker skin tone after moving to a sunnier and warmer environment

c) A species of fish develop fins that allow it to swim faster after a bigger, predatory fish is introduced into its environment

d) A blacksmith, when working, strengthens muscles in his arms, and so, his sons will have similar muscular dev.when they mature

a) enzymes

b) ribosomes

c) cytoskeleton

d) cell membrane

a) producers and sunlight

b) decomposers and plants

c) herbivores and carnivores

d) temperature and humidity

a) It decreases the chances of survival

b) it increases the chances of survival

c) it provides no harm to the organism

d) it changes the genetic makeup of the organism

a) blood typing

b) DNA fingerprinting

c) arthroscopic surgery

d) magnetic resonance imaging

a) neutral mutation

b) harmful mutation

c) structural mutation

d) beneficial mutation

a) Deletion

b) Frameshift

c) Insertion

d) Inversion

a) An individual who is homozygous for the trait will not express the mutation

b) An individual who is heterozygous for the trait will express the mutation

c) The mutation will never be expressed

d) The mutation will be expressed only in individuals who are homozygous for the recessive trait

a) Overproduction

b) Speciation

c) Natural selection

d) Variation

a) Evolution can occur in one generation over many years

b) Evolution can only occur through thousands or million of generations in a population

c) Evolution can be seen in one organism in one lifetime

d) All of the above

a) How finches use their beaks for the food or seeds available

b) The finches using their beak more, the beak changing, then passing the trait on

c) Whether the populations interbreed

d) The nutritional content of the seeds grew smaller birds

a) relative frequency

b) biological evolution

c) incomplete dominance

d) independent assortment

a) using the carbon 14 isotope

b) studying stratified bands of rocks

c) observing the biozones of different species

d) studying the different types of inclusions found in rock formations

a) requires the use of modern technology

b) can provide a rough estimation of the age of a fossil

c) measures changes in fossils according to decaying isotopes

d) requires observing the location in which the fossil was found