A life cycle that regularly alternates between haploid and diploid stages is found in all of the following EXCEPT
A. dogs
B. the bacterium E. coli
C. alfalfa plants
D. the mold N. crassa
B. the bacterium E. coli
You might also like to view...
Chemical reactions are classified as exergonic if ________
a. they involve gain or loss of atoms b. they need a boost of energy to begin c. they end with a net release of energy d. the bonds in the reactants have more energy than the bonds in the products
The blood flow slows down in the capillaries because the increased total area of the capillary is very large.
a. true b. false
Long-term potentiation is associated with NMDA receptors, one of several types of receptors that bind to the excitatory neurotransmitter _______. Its binding opens an internal cation channel within the receptor that allows _____ influx into the postsynaptic neuron, triggering a cascade of biochemical changes that lead to synaptic strengthening.
a) acetylcholine, Ca2+ ion b) glutamate, K+ion c) GABA, K+ ion d) glutamate, Ca2+ ion e) GABA, Ca2+ ion
What is the outcome of nondisjunction in meiosis I?
A) four gametes that are all trisomic B) a resultant gamete that may harbor from one chromosome both sister chromatids or none at all C) a resultant gamete that is triploid D) a resultant gamete that may harbor from one chromosome both homologs from one parent or none at all E) a resultant gamete that is devoid of all chromosomes