Biology 1001 LSUE Exam 2 Vidrine QUESTIONS WITH
ANSWERS RATED A+
Which is not a major characteristic of a gene? - major ingredient in the nucleus
Team science, mutation, mapping, crossing over, and neodarwinism are all products of the lab of
- Morgan
penetrance - percent/degree to which a dominant allele expresses itself
meiosis - involves reduction division
haploid - N; gametic condition
polyploid - tetraploid as in watermelons
Cummulative interaction generates - normal distributions
An AB blood type mother and an O type father cannot have children with the following blood
type - O
Kary Mullis authored - PCR
Phenotypically, the default sex morphotype is - female
3:1 - F2 of dihybrid cross--genotypic ratio
9:3:3:1 - F2 of trihybrid cross--phenotypic ratio
27:9:9:9:3:3:3:1 - F2 of dihybrid cross--genotypic ratio; nonMendelian
1:2:1:2:4:2:1:2:1 - F2 of monohybrid cross--phenotypic ratio
9:7 - F2 of dihybrid cross--phenotypic ratio
The eukaryotic cell is a community of prokaryotic cells. - false
Genetic testing before birth involves a test called - amniocentesis
Down syndrome involves Trisomy - 21
Klinefelter's syndrome involves an extra chromosome and is represented by - XXY
, Gregor Mendel is father of genetics. - true
Lock and key mechanisms depict - the specificity of enzymes
One gene-one enzyme theory assigns - one gene to each enzyme
Sickle cell (HbS) and thalassemia (HbT) are - abnormal hemoglobins
Lethals include Huntington's disease, a condition caused by a - dominant allele
Mendel's Law of segregation does not apply to linked genes on the same chromosome. - false
codons - three base units of RNA found on the mRNA
triplets - three base units of DNA code
anticodons - tRNA is an ____ recognition system
amino acid - three base units of RNA found on the tRNA
DNA(RNA(Proteins - central theory of molecular genetics
The SRY gene is found in - males
A representation of a genotype as AB/ab indicates - linkage between genes A and B
Mendel's classical genetics includes - law of segregation
Mendel's classical genetics - Includes: A. particulate inheritance, B. law of segregation, C. law of
independent assortment, D. law of dominance, E. all of the above
DNA amplification and fingerprinting - In modern crime investigation, PCR is used to increase
the amount of DNA, and RFLP is used to conduct the DNA fingerprinting.
Karyotyping - Includes: A. number of chromosomes, B. ploidy, C. chromosome banding, D. all
of the above
Operon hypothesis - A. gene control mechanism employing 'jumping genes'
Second messengers - B. gene control mechanism unique to eukaryotes
Transcriptional control - C. gene control mechanism using hormones and cAMP
Negative feedback - D. gene control mechanism--gene product turns off gene
Transposons - E. gene control mechanism with regulators and promoters
ANSWERS RATED A+
Which is not a major characteristic of a gene? - major ingredient in the nucleus
Team science, mutation, mapping, crossing over, and neodarwinism are all products of the lab of
- Morgan
penetrance - percent/degree to which a dominant allele expresses itself
meiosis - involves reduction division
haploid - N; gametic condition
polyploid - tetraploid as in watermelons
Cummulative interaction generates - normal distributions
An AB blood type mother and an O type father cannot have children with the following blood
type - O
Kary Mullis authored - PCR
Phenotypically, the default sex morphotype is - female
3:1 - F2 of dihybrid cross--genotypic ratio
9:3:3:1 - F2 of trihybrid cross--phenotypic ratio
27:9:9:9:3:3:3:1 - F2 of dihybrid cross--genotypic ratio; nonMendelian
1:2:1:2:4:2:1:2:1 - F2 of monohybrid cross--phenotypic ratio
9:7 - F2 of dihybrid cross--phenotypic ratio
The eukaryotic cell is a community of prokaryotic cells. - false
Genetic testing before birth involves a test called - amniocentesis
Down syndrome involves Trisomy - 21
Klinefelter's syndrome involves an extra chromosome and is represented by - XXY
, Gregor Mendel is father of genetics. - true
Lock and key mechanisms depict - the specificity of enzymes
One gene-one enzyme theory assigns - one gene to each enzyme
Sickle cell (HbS) and thalassemia (HbT) are - abnormal hemoglobins
Lethals include Huntington's disease, a condition caused by a - dominant allele
Mendel's Law of segregation does not apply to linked genes on the same chromosome. - false
codons - three base units of RNA found on the mRNA
triplets - three base units of DNA code
anticodons - tRNA is an ____ recognition system
amino acid - three base units of RNA found on the tRNA
DNA(RNA(Proteins - central theory of molecular genetics
The SRY gene is found in - males
A representation of a genotype as AB/ab indicates - linkage between genes A and B
Mendel's classical genetics includes - law of segregation
Mendel's classical genetics - Includes: A. particulate inheritance, B. law of segregation, C. law of
independent assortment, D. law of dominance, E. all of the above
DNA amplification and fingerprinting - In modern crime investigation, PCR is used to increase
the amount of DNA, and RFLP is used to conduct the DNA fingerprinting.
Karyotyping - Includes: A. number of chromosomes, B. ploidy, C. chromosome banding, D. all
of the above
Operon hypothesis - A. gene control mechanism employing 'jumping genes'
Second messengers - B. gene control mechanism unique to eukaryotes
Transcriptional control - C. gene control mechanism using hormones and cAMP
Negative feedback - D. gene control mechanism--gene product turns off gene
Transposons - E. gene control mechanism with regulators and promoters
