Biology quiz #1: Genetics definitions quiz - Statistics

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General Stats

This quiz has been taken 1,119 times
The average score is 10 of 31

Answer Stats

Definition	Answer	% Correct
The entire DNA sequence of an organism	Genome	72%
A length of DNA that codes for one (or more) polypeptides	Gene	71%
The creation of a single stranded mRNA copy of the DNA coding strand	Transcription	68%
A large polypeptide	Protein	62%
An alternative version of a gene	Allele	61%
A change in the amount of or arrangement of the genetic material in a cell	Mutation	53%
A type of allele that is always expressed in the phenotype	Dominant	52%
A triplet of nucleotide bases	Codon	51%
A polymer consisting of a chian of amino acid residues joined together by peptide bonds	Polypeptide	50%
A type of allele that is only expressed in the phenotype in the presence of another identical allele	Recessive	50%
A reduction division which produces 4 genetically different cells with the haploid number of chromosomes for the organism	Meiosis	49%
Programmed cell death	Apoptosis	42%
The assembly of polypeptides at ribosomes	Translation	39%
The cells produced as a result of this type of cell division	Gametes	36%
Alleles that both contribute to the phenotype	Codominant	31%
The swapping of sections of DNA between non-sister chromatids	Crossing over	29%
An organism that has two different alleles of the same gene	Heterozygote	21%
An organism that has two of the same alleles of a gene	Homozygote	21%
Unprogrammed, untidy and damaging cell death	Necrosis	15%
A length of DNA to which RNA polymerase binds to begin the transcription of the structural genes, Z and Y	Promoter region	15%
A molecule that triggers the production of the two enzymes coded for by the lac operon	Inducer (lactose)	14%
A protein that can bind to the operator region to stop the structural genes from being transcribed and translated	Repressor protein	13%
A length of DNA next to the structural genes in the lac operon	Operator region	11%
The enzyme produced as a result of the transcription and translation of the Z stuructural gene in the lac operon	β-galactosidase	10%
The interaction of different gene loci so that one gene locus masks or suppresses the expression of another gene locus	Epistasis	9%
The points at which non-sister chromatids attach	Chiasmata	8%
Genes that control the development of the body plan of an organism, including the polarity and positioning of the organs	Homeobox genes	7%
The clusters in which the genes from question 10 are arranged	Hox clusters	4%
The enzyme produced as a result of the transcription and translation of the Y stuructural gene in the lac operon	Lactose permease	4%
Changes to parts of or whole chromosomes	Chromosome mutations	3%
Changes to in the nucleotide base sequences in DNA	DNA mutations	3%

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