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Biology 103 Final

Punnett Squares, DNA, RNA, Traits, Genes

QuestionAnswer
Traits are? Inherited through the passing of factors from parent to offspring
The Principal of dominance states? Some alleles are dominant and others are recessive, dominant is always expressed if present.
Punnet Squares can be used to? Predict the possible traits of offspring in genetic crosses.
Heterozygous? Means that an organism has a dominant and a recessive allele for a trait.
A punnet square shows all of the following except? The actual results of a genetic cross.
In a punnet square showing the results of a two trait cross such as pea shape and pod color, the two traits? Assort independently of each other.
How many different allele combinations would be found in the gametes produced by a pea plant whose genotype was RrYY? Two (2)
If a pea plant that is heterozygous for round, yellow peas (RrYy) is crossed with a homozygous round, heterozygous yelloe (RRYy) how many different phenotypes could their offspring exhibit? Two (2)
A situation in which one allele for a gene is not completely dominant over another allele for that gene is called? Incomplete dominance.
A cross between a whit horse (WW) and a black horse (BB) produce all spotted offspring (WWBB) is known as? Codominance.
How many total chromosomes are shown in a normal human karyotype? Forty-Six (46)
Which of the following can be observed in a normal human karyotype? An extra chromosome.
A male has? One X chromosome and one Y chromosome.
A pedigree chart can be used to? All of the above
If a person inherits a recessive allele then they will ? Show the trait only if they have another recessive.
Colorblindness is more common in males than females because? The allele for colorblindness is recessive and located on the X chromosome.
The failure for chromosomes to separate during meiosis is called? Non-Disjunction.
Which of the following is a nucleotide found in RNA? Ribose + Phosphate + Uracil
DNA is copied prior to mitosis though a process known as? Replication.
During DNA replication, DNA strand that has the bases TCCGATTA produce a stand? AGGCTAAT.
What is produced during DNA transcription? mRNA.
Three bases (a codon) on a strand of mRNA are used to code for how many amino acids? One (1)
What happens during the process of translation? The cell uses information from mRNA to produce proteins.
Which type of RNA serves as the blueprint for the DNA Genetic code? mRNA only.
Where does translation occur in the cell? Ribosomes.
Created by: krooker95
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