Mendelian Genetics
He is considered to be the "father" of modern genetics
Gregor Mendel
This gene on the Y chromosome determines testes formation
SRY gene
This mechanism of DNA replication is biologically correct
Semiconservative Model
This process produces messenger RNA (mRNA)
Transcription
What is my career goal?
Wildlife Biologist/CLS
A dihybrid cross has this phenotypic ratio
9:3:3:1
Down syndrome is an example of this type of aneuploidy
Trisomy of the 21st chromosome
Lagging strands are discontinuous and can also be called this
Okazaki fragments
in 1941, Beadle and Tatum hypothesized this
One gene-one enzyme hypothesis
What is my favorite color?
Blue & pink
Sickle cell anemia causing other phenotypic effects such as blindness is characterized by this word
Pleiotropy
This meiotic process explains why both of Morgan's initial expected results for linked genes was incorrect
Crossing Over
5' to 3'
In what locations do transcription and translation occur in?
Transcription: Nucleus
Translation: Cytoplasm
What days do I usually attend Dr. Ogoshi's lectures?
Wednesdays
Name the 4 main concepts that explain Mendelian genetics
1. Alternative versions of genes (alleles) account for variations in inherited characters
2. For each gene, an organism inherits 2 alleles, one from each parent
3. If 2 alleles at a locus differ, the dominant allele is expressed over the recessive
4. Law of Segregation: separation of alleles during gamete formation, ending up in different gametes
What was Alfred Sturtevant's hypothesis in regards to recombination frequencies and crossing over?
Recombination frequencies reflect distances between genes on a chromosome. The further apart two genes are, higher probability of crossing over.
Name the three repair mechanisms used by cells
1. Proofreading
2. Mismatch repair
3. Excision repair
When a number of ribosomes can translate a single mRNA molecule simultaneously, it forms this
Polyribosome
When did I take Dr. Ogoshi's class?
Fall 2025
An X-linked genetic condition known as Duchenne muscular dystrophy (DMD) is characterized by progressive muscle weakness and degeneration as a result of alterations in a protein known as dystrophin, which aids in the preservation of muscle cells. What is the probability that a child will inherit DMD if an affected man marries a carrier woman?
1/2 chance
In a cross between a gray bodied, normal winged female fruit fly and a black bodied, vestigial winged male fruit fly, the offspring were as follows: 758 gray-normal, 482 black-vestigial, 133 gray-vestigial, and 201 black-normal. Calculate the recombination frequency.
(334 recombinants/1574 total offspring) x 100 = 21%
Name the 7 important proteins and enzymes used in DNA replication in order in which they are used
1. DNA helicase
2. Topoisomerase
3. Single-strand binding proteins
4. RNA primase
5. DNA polymerase III
6. DNA polymerase I
7. DNA ligase
As RNA polymerase moves along the DNA, it will untwist the double helix and reveal this many DNA bases at a time
10-20 bases
What pets do I have?
2 dogs: Mochi and Kitty