Bio 133 Exam 1 Questions With Complete Verified Solutions.
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Course
BIOL 133
Institution
BIOL 133
What is genetics? - Answer study of how traits are transmitted
What are genes? - Answer instructions within the cell (segments of DNA)
Genes tell the cells how to _______ - Answer make proteins
DNA: - Answer stores genetic material in cell (how to make you)
double helix
Wh...
Bio 133 Exam 1 Questions With
Complete Verified Solutions.
What is genetics? - Answer study of how traits are transmitted
What are genes? - Answer instructions within the cell (segments of DNA)
Genes tell the cells how to _______ - Answer make proteins
DNA: - Answer stores genetic material in cell (how to make you)
double helix
What is DNA composed of? - Answer sugar (deoxyribose), phosphate, and nitrogen bases
Which nitrogenous bases go with each other? - Answer adenine - thymine
Cytosine-guanine
What is different with RNA nitrogenous bases than DNA? - Answer RNA has uracil instead of thymine
What is a mutation? - Answer changes in DNA
what is an example of a mutation? - Answer using a tanning booth and damaging your skin
What increases mutations? - Answer radiation
Cigarettes cause ____ - Answer mutations
,T/F there are good mutations - Answer true
RNA: - Answer allows us to use DNA info to make proteins
Genetic code is ________ - Answer universal
Where does insulin come from? - Answer bacteria
Normal RBC - Answer normal folding of hemoglobin molecule
Sickled RBC - Answer abnormal folding of hemoglobin molecule
____: has 23 pairs of chromosomes - Answer somatic cell
autosomes: - Answer non-sex chromosomes; 22 pairs
X and Y chromosomes are - Answer sex chromosomes
Karyotypes: - Answer charts that display the chromosome pairs from largest to smallest
mendelian trait - Answer trait caused by a single gene
Multifactorial trait - Answer determined by one or more genes and environmental factors
genotype - Answer An organism's genetic makeup, or allele combinations. (alleles present} - underlying
instructions
phenotype - Answer An organism's physical appearance, or visible traits. (alleles expressed)
, ___: affect when just present in one copy (on one chromosome) - Answer dominant allele
___: must be present on both chromosomes of a pair to be expressed - Answer recessive allele
Pedigrees: - Answer charts that depict the members of a family and indicate which individuals have
particular inherited traits
gene pool - Answer all the alleles in a population
____: what is present on their DNA - Answer genotype
what you see ____ - Answer phenotype
Hemizygous: - Answer only one copy of a gene (in males) ex. one shoe
some traits can be _____ - Answer genetic
zygous means - Answer zygote - egg
Phocomelia - Answer inherited as a recessive gene producing sea like limbs
What is Phenocopy caused by? - Answer maternal intake of thalidomide
What is thalidomide? - Answer medication for severe morning sickness/ bad for pregnant women/only
used in Europe
Evolution: - Answer change in allele frequencies over time
when something says "instantly occurred" it means a _____ yr period - Answer 10,000 year period
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