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LSC 347-Genetics Exam 1 UPDATED Questions and CORRECT Answers
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LSC 347-Genetics Exam 1 UPDATED Questions and CORRECT Answers Hereditary - CORRECT ANSWER- -From parents, passed from one gen to another -Basis of retaining ancestral characteristics Variation - CORRECT ANSWER- -Change, alternative forms, phenotypes, mutation, combinations -Basis of species...

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  • November 18, 2024
  • 17
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • lsc 347 genetics exam 1
  • lsc 347 genetics exam
  • lsc 347 genetics
  • lsc 347
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LSC 347-Genetics Exam 1 UPDATED
Questions and CORRECT Answers
Hereditary - CORRECT ANSWER- ✔✔-From parents, passed from one gen to another
-Basis of retaining ancestral characteristics


Variation - CORRECT ANSWER- ✔✔-Change, alternative forms, phenotypes, mutation,
combinations
-Basis of species diversity


Genetics - CORRECT ANSWER- ✔✔Study of genes, hereditary and variation



Charles Darwin - CORRECT ANSWER- ✔✔Theory of natural selection: survival of the
fittest


Gregory Mendel - CORRECT ANSWER- ✔✔-Father of genetics
-Traits are passed from one generation to another
-Variations of traits
-Trait controlled by factors which separate during gamete (sex cell) formation
-Factors decided by allele, phenotype
-Pea plants


Walter Sutton & Thodor Boveri - CORRECT ANSWER- ✔✔Chromosomal Theory of
Inheritance:
-Inherited traits controlled by genes on chromosomes, transmitted through gametes
-Maintains genetic continuity


Oswald Avery, Colin MacLeod, & Maclyn McCarty - CORRECT ANSWER- ✔✔DNA is
genetic material


James Watson & Francis Crick - CORRECT ANSWER- ✔✔Structure of DNA:

,-Double stranded helix
-Complementary strands
-Nucleotide based strands (ATGC)


Nucleotide - CORRECT ANSWER- ✔✔Comprised of sugar, phosphate & nitrogenous base



Allele - CORRECT ANSWER- ✔✔Alternative/variant form of a gene



Gene - CORRECT ANSWER- ✔✔-DNA section that codes for specific protein/functional
RNA
-unit of inheritance


Central Dogma - CORRECT ANSWER- ✔✔DNA > RNA > Protein
- Exception of RNA genetic material (viruses)


Exceptions of Central Dogma - CORRECT ANSWER- ✔✔-When genetic material is RNA
(viruses)
-RNA > DNA > mRNA > proteins


Replication - CORRECT ANSWER- ✔✔DNA replicated to DNA



Transcription - CORRECT ANSWER- ✔✔-DNA transcribed to RNA
-Process of copying a gene's DNA sequence to make an RNA


Translation - CORRECT ANSWER- ✔✔-RNA translated to protein
-Proteins are synthesized


Genotype - CORRECT ANSWER- ✔✔genetic constitution; allelic distribution



Phenotype - CORRECT ANSWER- ✔✔physical attributes

, Recombinant DNA technology - CORRECT ANSWER- ✔✔Use of restriction enzymes to
insert foreign DNA into carrier DNA molecules (vector)


Biotechnology - CORRECT ANSWER- ✔✔Field of science using recombinant DNA tech &
molecular tech to make products
-Used in plants, animals, food supply, meds


Common models in genetics - CORRECT ANSWER- ✔✔Mice, corn, fruit fly (drosophila)



Genome - CORRECT ANSWER- ✔✔total genetic information carried by a cell/organism



Prokaryotic DNA organization - CORRECT ANSWER- ✔✔Organized into a circular
chromosome concentrated in nucleoid


Types of proteins that help supercoil bacterial chromosomes in nucleoid - CORRECT
ANSWER- ✔✔-Nucleoid associated proteins
-Structural maintenance proteins


Bacterial chromosome - CORRECT ANSWER- ✔✔-Linear/circular
-thousand of genes
-covered w/ protein
-large
-essential genes for survival


Plasmid - CORRECT ANSWER- ✔✔-Circular
-relatively small # genes
-not covered w/ protein
-small
-Carries nonessential genes that help the cell deal w/ stress

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