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Bio 133 Exam 1 Questions With Complete Verified Solutions.
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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...

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  • November 5, 2024
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  • 2024/2025
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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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