BSC 108 YATES EXAM 3
Allele - ANS-one of two or more forms of a gene or a genetic locus (genes)
Be able to work genetic problems
1) Bb x bb =?
2) Bb x Bb =? - ANS-1)Bb,Bb,bb,bb
2)BB,Bb,Bb,bb
Dominant - ANS-An allele that is always expressed
Gene - ANS- A chromosomal DNA segment that codes for a particular trait Genotype -
ANS-genetic makeup of an organism
Heterozygous - ANS-When an organism has different alleles for a gene
Homozygous - ANS-When an organism has identical (same) alleles for a gene
How can a mutation be good, bad or cause no obvious difference? - ANS-Good: when it
enables the organism to withstand particular environmental stresses better than normal.
Bad: Mostly all the time. to both individuals' and populations' health. How can a mutation in
the DNA result in a protein not functioning correctly? - ANS--By altering DNA the end result
can be detrimental due to the changes in DNA.
In a DNA strand, how do the bases pair? ANS: adenine, thymine, cytosine, and guanine
-(A,T,C,G)
How do you produce an F1 generation? - ANS-In the cross pollination of P generation
plants
How do you produce an F2 generation? - ANS-Progeny of self-pollinated F1 generation
plants
How does a virus replicate? - ANS-1st, the virus attached itself to a living cell.
Then it injects its own DNA into the cell
The cell is instructed by the virus's DNA to devote all of its resources to copying the virus's
DNA and producing additional strains of the same virus. Last, the cell ruptures and the new
viruses are set free to repeat the process
Know examples of codominance and incomplete dominance - ANS-Codominance: Cross A
and B blood and get AB
Incomplete: White crossed with red and get pink
Know the steps for reproductive cloning and therapeutic cloning. - ANS-
Know where the sugar, phosphates, and nucleotides are located on the double helix. - ANS-
Know which is the dominant trait between freckles and non-freckles, widow's peak and
straight hairline, and detached earlobe and attached earlobe - ANS-Dominant=reckles
Recessive=non-freckles
Dominant=widows peak
Straight hairline = recessive Dominant=free earlobe
Recessive=attached earlobe
Locus - ANS-a specific location of a gene or DNA sequence on a chromosome
Name some viruses - ANS-Chicken pox, small pox, HIV, Colds, mumps, rabies
PCR is an acronym for what? - ANS-polymerase chain reaction
Phenotype - ANS-An organism's physical appearance, or visible traits.
Allele - ANS-one of two or more forms of a gene or a genetic locus (genes)
Be able to work genetic problems
1) Bb x bb =?
2) Bb x Bb =? - ANS-1)Bb,Bb,bb,bb
2)BB,Bb,Bb,bb
Dominant - ANS-An allele that is always expressed
Gene - ANS- A chromosomal DNA segment that codes for a particular trait Genotype -
ANS-genetic makeup of an organism
Heterozygous - ANS-When an organism has different alleles for a gene
Homozygous - ANS-When an organism has identical (same) alleles for a gene
How can a mutation be good, bad or cause no obvious difference? - ANS-Good: when it
enables the organism to withstand particular environmental stresses better than normal.
Bad: Mostly all the time. to both individuals' and populations' health. How can a mutation in
the DNA result in a protein not functioning correctly? - ANS--By altering DNA the end result
can be detrimental due to the changes in DNA.
In a DNA strand, how do the bases pair? ANS: adenine, thymine, cytosine, and guanine
-(A,T,C,G)
How do you produce an F1 generation? - ANS-In the cross pollination of P generation
plants
How do you produce an F2 generation? - ANS-Progeny of self-pollinated F1 generation
plants
How does a virus replicate? - ANS-1st, the virus attached itself to a living cell.
Then it injects its own DNA into the cell
The cell is instructed by the virus's DNA to devote all of its resources to copying the virus's
DNA and producing additional strains of the same virus. Last, the cell ruptures and the new
viruses are set free to repeat the process
Know examples of codominance and incomplete dominance - ANS-Codominance: Cross A
and B blood and get AB
Incomplete: White crossed with red and get pink
Know the steps for reproductive cloning and therapeutic cloning. - ANS-
Know where the sugar, phosphates, and nucleotides are located on the double helix. - ANS-
Know which is the dominant trait between freckles and non-freckles, widow's peak and
straight hairline, and detached earlobe and attached earlobe - ANS-Dominant=reckles
Recessive=non-freckles
Dominant=widows peak
Straight hairline = recessive Dominant=free earlobe
Recessive=attached earlobe
Locus - ANS-a specific location of a gene or DNA sequence on a chromosome
Name some viruses - ANS-Chicken pox, small pox, HIV, Colds, mumps, rabies
PCR is an acronym for what? - ANS-polymerase chain reaction
Phenotype - ANS-An organism's physical appearance, or visible traits.
