BIOL 3315 Exam 1 Review University of Texas, Arlington 2024
13 views 0 purchase
Course
BIOL 3315 (BIOL3315)
Institution
Abacus College, Oxford
Chapter 1 Quiz Questions:
• Central dogma: DNA -> RNA -> protein
• Modern synthesis - merges evolutionary theory with experimental mathematical, and molecular population biology.
• Watson and Crick - proposed accepted model for the structure of DNA
• What evolutionary process can ...
Youtube Notes:
• Dihybrid cross: First Outer Inner Last. FOIL each parent
○ P->F1: YYRR -> YR, yyrr ->yr
F1: YyRr
○ F1->F2: YyRr x YyRr FOIL
YR, Yr, yR, yr
F2 Ratio -> 9:3:3:1
• Incomplete dominance -
• Codominance -
Chapter 1 Quiz Questions:
• Central dogma: DNA -> RNA -> protein
• Modern synthesis - merges evolutionary theory with experimental mathematical, and molecular
population biology.
• Watson and Crick - proposed accepted model for the structure of DNA
• What evolutionary process can lead to genetic change in the populations/evolution?
○ Mutation, genetic drift, migration, and natural selection
• Genetics is the science of heredity and variation
• To what strand end is the next nucleotide added during nucleic acid synthesis? 3' end
• Mutation is the ultimate source of genetic variation
• Pleiotropic - Mutation caused by a single gene, but symptoms vary and affect different organs.
• Both DNA and RNA have a sugar-phosphate bond, are attached via phosphodiester bond and have
a sugar attached to a nitrogenous base
• Natural selection is the only evolutionary process that leads to the adaptation of organisms to
their environment.
Chapter 2 Quiz Questions:
• In flies, several genes are involved in eye color. For the brown gene, individuals carry at least one
dominant allele, B, show wild type, dark red eyes and brown eyes are observed in individuals bb,
homozygous for the recessive allele. You are given the following phenotypic counts of the progeny
from a cross: 140 flies with red eyes and 138 flies with brown eyes. Determine the genotypes of
the parents of this cross: Bb x bb
• Genetic traits can skip a generation
• A pea plant heterozygous for pod shape and pod color was selfed. The progeny consisted of 315
round and yellow pods, 108 round green, 101 wrinkled yellow, 32 wrinkled and green pods. For
both traits there is a dominant allele and recessive allele. You would like to perform a chi-square
test to see if the observations fit the expectation of mendel's laws. What would be the critical
value of the chi square distribution you will compare your X^2 value with? Df = 4(phenotypes)-1
=3, p value = 0.05
Genetics Page 1
, • Five unlinked genes: qq, Rr, Gg, PP, mm. Suppose and infinite number of gametes are formed by
this individual. What is the proportion of gametes that will have the genotype qrPGm? 25%
mm, gg, PP all homozygous, do not affect genotype. Rr x Gg = RG, Rg, rG, rg. rG = 1/4
• Mendel infered
○ No blending inheritance
○ Diploid orgs carry two copies
○ Some traits are dom/recessive
○ Law of segregation - Alleles segregate during the formation of gametes and then come back
together during fertilization, producing random combos
○ Law of independent assortment - during formation of gametes, segregation of alleles at one
locus is independent of segregation of alleles at another locus
• Aa Bb Mm x Aa Bb Mm, probability of all dominant phenotypes - 27/4
○ (3/4 prob to be dom pheno, ^ 3rd for three types
• Binomial prob
Genetics Page 2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller VEVA2K. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $25.99. You're not tied to anything after your purchase.
