Which of the following statements about Mendel's experiments is false?
(a) The pea plants could undergo both cross-fertilization and self-fertilization.
(b) The true-breeding strains were homozygous for the traits that Mendel examined.
(c) The egg can carry either the allele from the maternal or the paternal chromosome.
(d) All traits that Mendel studied were recessive.
(d) The traits that Mendel studied were inherited in a discrete fashion. For this to occur, for each pair of alleles, one allele is necessarily dominant and the other is recessive.
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The scientific method has limitations. It can only answer objective questions based on quantitative facts from observable, measurable, and repeatable experiments. It cannot answer subjective questions based on qualitative beliefs or opinions such as the presence of deities and ghosts or who makes the best doughnut. Could the scientific method theoretically be used to answer the question, "Does throwing a virgin into a volcano prevent it from erupting?" Support your answer.
What will be an ideal response?
Adventitious roots arise from a plant’s stem
Indicate whether the statement is true or false.
What is a regulatory protein for a gene? It binds to specific DNA sequences with high affinity and plays a predominant role in determining if a genome segment is transcribed or not.
a) the terminator b) the promotor c) the structural genes d) the repressor e) the operator
A procedure using both reverse transcriptase and real time PCR can be used to
A) determine the number of copies of a DNA sequence in a sample. B) determine the number of copies of an RNA sequence in a sample. C) produce DNA fragments for cDNA cloning. D) both determine the number of copies of an RNA sequence in a sample and produce fragments for cDNA cloning. E) produce RNA fragments for cloning.