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Final Exam
Final exam questions
14
Biology
9th Grade
05/26/2011

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Term
The farther apart two genes are located on a chromosome determines the likely hood of them being inherited together. Does it increase or decrease the likelihood
Definition
Decrease
Term
A cross of a black chicken with a white chicken, produces all blue offspring. This type of inheritance is known as what?
Definition
Intermediate inheritance. ( Incomplete dominance)
Term
Variation in human skin color is a result of what?
Definition
Polygenic Traits.
Term
Describe what makes up a nucleotide found in DNA.
Definition
Deoxyribose ( Ring shaped sugar ), Phosphate group, nitrogenous base.
Term
During DNA replication, a DNA strand that has the bases CTAGGT produces a strand with the bases__________
Definition
GATCCA
Term
What happens during the process of translation?
Definition
Conversion of nucleic acid language (mRNA) into Amino acid language (DNA).
Term
What is produced during transcription?
Definition
mRNA from DNA.
Term
DNA is copied during a process called what?
Definition
Replication.
Term
What is the purpose of the Human Genome project?
Definition
To determine the sequence of nucleotides.
Term
Can an extra chromosome be observed in a karyotype?
Definition
Yes.
Term
Define nondisjunction.
Definition
An event that takes part during meiosis where chromatids and chromosomes fail to seperate.
Term
The allele for colorblindness is recessive and located on the X Chromosome, therefore it is more commonly seen in which gender?
Definition
Male.
Term
Why are lethal dominant alleles less common than lethal recessive alleles?
Definition
People with dominant disorders die before they can pass on the disorder.
Term
Where did Charles Darwin make many observations while on the Beagle?
Definition
Galapagos Islands.
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