QUESTION AND VERIFIED CORRECT
ANSWERS GRADED A+ [LATEST
UPDATE] 100% GUARANTEED PASS
A saturated fat ___________________. - CORRECT ANSWER--is solid at room temperature
-has fatty acids with no double bonds between the carbon atoms
-is of animal origin
A testcross is a cross between an individual that has a dominant phenotype but an unknown
genotype and an individual that has a ________________ genotype. - CORRECT ANSWER-
homozygous recessive
A tumor suppressor gene __________________ - CORRECT ANSWER--inhibits cell division
-prevents cancer
-is subject to mutations
A tumor suppressor gene normally inhibits cell division, and therefore, a tumor suppressor gene
can promote cancer when both copies of the gene are _________________? - CORRECT
ANSWER-inactivated
A(n) ___________________ is a group of three bases on tRNA that is complementary to a
specific mRNA codon. - CORRECT ANSWER-anticodon
,According to the endosymbiosis theory, ________ are derived from prokaryotes that were taken
up by larger cells. - CORRECT ANSWER-mitochondria
Active transport _________________ - CORRECT ANSWER-requires an input of ATP
Actively transcribed genes in eukaryotic cells are associated with what? - CORRECT ANSWER-
euchromatin
An unknown chemical is analyzed and found to contain the bases thymine and guanine. This
chemical is most likely ______________________. - CORRECT ANSWER-DNA
As a cell increases in size, the ______________________. - CORRECT ANSWER-surface area and
volume increase, but the surface area:volume ratio decreases.
Bacteriophages are viruses that infect bacterial cells. True or false? - CORRECT ANSWER-true
C4 photosynthesis __________________ - CORRECT ANSWER--occurs in plants, such as
sugarcane and corn, whose bundle sheath cells contain chloroplasts
-is an advantage when the weather is hot and dry
Cancer cells require many nutrients, which are supplied by blood vessels. Formation of new
blood vessels is called __________________________ - CORRECT ANSWER-angiogenesis
Converting a proto-oncogene to an oncogene can occur by ____________________ - CORRECT
ANSWER--a mutation causing increased protein activity
-an increased number of gene copies causing more proteins to be produced
-a change in location putting the gene under control of new promoter for increased
transcription
, Coupling occurs when the energy released by an exergonic reaction is ______________- -
CORRECT ANSWER-used to drive an endergonic reaction
Crossing-over occurs between....... - CORRECT ANSWER-nonsister chromatids of a bivalent
DNA is housed within the nucleus, but the mRNA needs to leave in order to be translated into a
protein. How does the mRNA leave the nucleus if the nucleus is surrounded by the nuclear
envelope? - CORRECT ANSWER-The nuclear envelope contains pores that allow the mRNA to
exit through.
DNA replication is considered semiconservative because why? - CORRECT ANSWER-it uses the
original strand as a template for replication
DNA replication occurs in the _____________ direction. - CORRECT ANSWER-5' to 3'
DNA was shown to be the transforming substance when only the ___________, an enzyme that
digests ____________, prevented transformation from occurring. - CORRECT ANSWER-DNase;
DNA
Down syndrome is also known as what? - CORRECT ANSWER-trisomy 21
During ____________ stage, chromosomes duplicate. - CORRECT ANSWER-S
During _________________________, the homologous chromosome pairs separate in a
random fashion contributing to genetic diversity among the offspring. - CORRECT ANSWER-
independent assortment
During cellular respiration, only a portion of the energy from glucose is converted into ATP.
What is the rest of the energy converted into? - CORRECT ANSWER-heat