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Parts is Parts
Mendelian Minutia
Make me a Protein
A Molecular Veiw
Wild Card
100
What is the function of ribosomes?
Ribosomes organize protein synthesis.
100
What is an allele?
A version or form of a gene.
100
The DNA sequence AACTGG would be transcribed to what sequence?
UUGACC (RNA)
100
What are the basic units that make up a protein?
Amino acids.
100
What is the term for genetically based changes that occur in a population over time?
Evolution
200
In human cells, what organelle has its own DNA and is thought to have evolved from aerobic bacteria?
Mitochondria
200
What is a recessive allele?
An allele which much be homozygous in order to be expressed.
200
Name the three primary types of RNA molecules involved in protein synthesis.
mRNA, tRNA, rRNA
200
What is the basic unit of DNA?
Nucleotide
200
What is stabilizing selection?
Selection favoring an intermediate phenotype.
300
What is a homologous pair of chromosomes?
A pair of chromosomes containing the same genes, but one is maternal and one is paternal.
300
When a diploid individual has two identical alleles at a particular locus, that individual is _____ at that locus.
Homozygous
300
On what kind of molecule would you find the anticodon?
tRNA
300
What general type of molecule is hemoglobin?
Protein
300
What is a neutral allele?
An allele that conveys no positive or negative fitness
400
Why aren’t somatic mutations heritable?
Because they occur in body cells, not gametes or cells forming gametes.
400
What problem might a triploid organism have?
Triploids generally cannot make gametes; they are sterile.
400
What is an indel?
A mutation that results in an insertion or deletion in a DNA sequence.
400
Cell membranes are made primarily of what two types of molecules?
lipids and proteins
400
Describe one kind of gene that is not translated into protein.
RNA genes or regulatory genes
500
In what phase of cell division does recombination occur?
Prophase I of meiosis
500
When gene influences multiple traits, the phenomenon is called _______.
Plieotropy
500
Of the three positions in a codon, which is translated with the lowest fidelity?
Third position
500
What are the three components of a nucleotide?
Sugar, phosphate, nitrogenous base
500
At a single locus with two alleles, how can balancing selection maintain both alleles in a population?
Selection favors heterozygotes.