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BIOL 112 Lab Exam 1 TAMU Questions And Answers 100% Solved | Rated A+
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BIOL 112 Lab Exam 1 TAMU Questions And Answers 100% Solved | Rated A+
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BIOL 112 Lab Exam 1 TAMU Questions AndAnswers 100% Solved | Rated A+
Genetic drift may be compounded by - ✔✔genetic bottleneck and founder effect
Fixation - ✔✔100% of a population has the same allele.
Gene flow - ✔✔individuals move in or out of a population, adding or removing their alleles
Mutation - ✔✔occurs when a new allele arises spontaneously within a population, which alters
allele frequencies
Heterozygote advantage - ✔✔allows deleterious alleles to survive due to the heterozygous genotype
having a survival advantage over either of the homozygous genotypes
Effects of natural selection - ✔✔predators hunt certain phenotypes causing that allele to decrease
Effects of genetic drift/ gene flow - ✔✔the change in allele frequencies due to random chance (example:
random group of a species dying)
Effects of sexual selection - ✔✔sex cannot occur due to anatomy, or a certain phenotype is
preferred when mating
, Deleterious alleles - ✔✔alleles that negatively affect an organism (usually recessive, often lethal)
Recessive refuge - ✔✔allows a recessive deleterious to stay in a gene pool by hiding out in
a heterozygous individuals
Order of taxonomy - ✔✔Kingdom, Phylum, Class, Order, Family, Genus, Species
The 3 domains of organisms - ✔✔Bacteria, Archaea, Eukarya
Most abundant and widespread organism on earth - ✔✔Domain Bacteria
Bacillus - ✔✔rod shaped
Coccus - ✔✔spherical shaped
Spirillus - ✔✔spiral shaped
Requires oxygen - ✔✔aerobic bacteria
Cannot tolerate oxygen - ✔✔anaerobic bacteria
Facultative anaerobes - ✔✔can survive with or without oxygen
Gram + - ✔✔thicker cell wall and purple
Gram - - ✔✔thinner cell wall and pink
Non-vascular plant - ✔✔Do not have any tissues to transport water and nutrients
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