Biology Questions
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Your family is taking a long driving vacation across the midwestern and western US. As you ponder why, you remember that such differences in the distribution of species are part of the field of ___. A) geology B) paleontology C) biogeorgraphy D) morphology
Homology is evidence of ___. A) biogeography B) natural selection C) convergent evolution D) common ancestry
Which of the following is a component of the fossil record? A) the distribution of murid rodents in Australia and Asia B) the similarity of the forelimbs of cats and bats C) bones of extinct whales D) molecular sequences
In the Origin of Species, Darwin argued that the mechanism of descent with modification was ___. A) artificial selection B) inheritance of acquired characteristics C) natrual selection D) uniformitarianismE) none of the above
What did Darwin find in South America that suggested that the Andes mountains had been gradually lifted up over millions of years? A) dinosaur bones in the Amazon basin B) impressions of ocean waves at the top of a mountain C) bird fossils at the top of mountains in Argentina D) marine snail fossils high up in the Andes mountains
what domain is responsible for recruiting HATs and HDs
if an enhancer that is specific for spinal cord protein is fused with GFP where will you see GFP expressed
The transcription factor MEF2 normally binds enhancer of muscle-specific genes and recruits HATs via trans-activating domain. You mutate this domain so it can no longer recruit HATS and find
what happens is not all TFs are bound to the enhancer in combinatorial association
On a phylogenetic tree, which term refers to lineages that diverged from the same place?a. sister taxab. basal taxac. rooted taxad. dichotomous taxa
Which statement about the taxonomic classification system is correct?a. There are more domains than kingdoms.b. Kingdoms are the top category of classification.c. Classes are divisions of orders.d. Subspecies are the most specific category of classification.
What is used to determine phylogeny?a. mutationsb. DNAc. evolutionary historyd. organisms on earth
What do scientists in the field of systematics accomplish?a. discover new fossil sitesb. organize and classify organismsc. name new speciesd. communicate among field biologists
What do scientists use to apply cladistics?a. homologous traitsb. homoplasiesc. analogous traitsd. monophyletic groups
Why do scientists apply the concept of maximum parsimony?a. to decipher accurate phylogeniesb. to eliminate analogous traitsc. to identify mutations in DNA codesd. to locate homoplasies
What is true about organisms that are a part of the same clade?a. They all share the same basic characteristics.b. They evolved from a shared ancestor.c. They usually fall into the same classification taxa.d. They have identical phylogenies.
Particles that transfer genetic material from one species to another, especially in marine prokaryotes:a. horizontal gene transferb. lateral gene transferc. genome fusion deviced. gene transfer agents
The transfer of genes by a mechanism not involving asexual reproduction is called:a. meiosisb. web of lifec. horizontal gene transferd. gene fusion
What does the trunk of the classic phylogenetic tree represent?a. single common ancestorb. pool of ancestral organismsc. new speciesd. old species
Which phylogenetic model proposes that all three domains of life evolved from a pool of primitive prokaryotes?a. tree of lifeb. web of lifec. ring of lifed. network model