eQuizShow

Gretchen

Genetics Basic

Question: What is a gene?
Answer: A gene is a hereditary unit that codes for inheritable characteristics

Question: Define: trait
Define: Mendelian trait

Answer: Trait: A genetically determined characteristic
Mendelian Trait: A trait that you have or you don't. Ideally controlled by a single gene.


Question: Define: Species

Give 2 examples of species

Answer: A species is a group of closely related organisms that can interbreed.

Examples: dogs, felines (some), bovine (cow and bison), bears, equines (horses and donkeys)


Question: Define: Allele

(Bonus: I refer to Allele and what interchangeably?)

Answer:
An allele is an alternative version of a gene. (So, you might have the allele for pigmented eyes or nonpigmented eyes)

Bonus: allele and gene


Question: Define: P1
Define: F1
Define: F2

Answer: P1- parents generation
F1- first filial generation (first set of offspring)
F2- second filial generation (second generation)


Mendel

Question: Who is Gregor Mendel
Answer: Gregor Mendel was an Austrian Monk who studied genetics. He failed is qualifying exam to become a teacher and decided to become a monk instead. His monastery put him through University and he studied genetics and statistics. Gregor Mendel breed and studied pea plants. 

Question: What characteristics did Gregor Mendel study in pea plants?
Answer: Gregor Mendel studied 7 traits. Flower color, plant height, pod shape, seed shape, seed coat tint, unripe pod color,  and flower location.

Question: Gregor Mendel is considered the......________________ (Fill in the blank)
Answer: Gregor Mendel is considered the FATHER OF MODERN GENETICS

Question: Mendel originally wanted to study what? Why wouldn't his Abbot let him?
Answer: Mendel wanted to study the genetics in mice. However his Abbot didn't want his monk studying animal sex

Question: Gregor Mendel was the first person to use what to describe his genetic results?
Answer: Gregor Mendel was the first person to use STATISTICS to describe his genetic results.

Genetic Code

Question: Write a genetic code to describe a homozygous tongue curler. 
-T- can curl tongue
-t- cannot curl tongue. 

Answer: TT

Question: GgLL would be homozygous or a heterozygous code?
Answer: GgLL is heterozygous

Question: Describe DNA
Answer: Deoxyribonucleic acid is a double helical strand of genetic material. It is the 'blue print' of life and describes an organism. 

Question: In a species of plant, a cross between a homozygous purple-flowered plant and a homozygous white-flowered plant yields all purple-flowered plants. The purple allele is.....
Answer: Dominant

Question: Define Genotype
Define Phenotype

Answer: Genotype- genetic code, the genetic part
Phenotype- observable characteristic. 


Punnett Squares

Question: What does a Punnett square look like? What uses does it have?
Answer: A Punnett square looks like a 4 square. It is used to visually see the statistical possibilities of a genetic cross. 

Question: Draw and solve a Punnett square to solve the cross:

TtxTt

Answer: You will get TT, Tt (2x) and tt

Question: Cross Jj x jj

Show all possible genotypes and their ratio

Answer: Jj- 2/4
jj- 2/4


Question: Cross a chicken with black feathers (B) and white spots (s) with another chicken with red feathers (b) and no spots (S).

Bbss x bbSs

Answer: BbSs- 4/16
bbSs- 4/16
Bbss- 4/16
bbss- 4/16


Question: Cross RrBb x RrBb

Write out all possible phenotypes and their ratio.

R- red scales
r- yellow scales
B- Blue horn
b- brown horn

Answer:
Red scale, blue horn- 9/16
Yellow scale, blue horn- 3/16
Red scale, brown horn- 3/16
Yellow scale, brown horn- 1/16



Random

Question: What is genetics?
Answer: Genetics is the study of life and its variations. It can look at individuals and single genes and chromosomes or it can look at an entire population. 

Question: What is Preformism?
Answer: Preformism was the belief that a tiny human emerges perfectly formed from the man. The woman acts as an incubator. 

Question: Describe one Mendelian trait for every person in the room
Answer: Observe classmates and refer to list on wall,
-curled tongue, pigmented eyes, blue eyes, uncurled tongue, tastes PTS, cannot taste PTC, curly hair, not really curly hair, hairy knuckles, hairless knuckles, widows peak, straight hairline, attached earlobes, detached earlobes.....


Question: How would you set up a Punnett square to cross PpTt x ppTT
Answer: on top- PT, Pt, pT, pt
on the side- pT, pT, pT, pT


Question: What is the most interesting thing you have learned so far in genetics?
Answer: Pretty much any answer will do. Serious answers only!