Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
54 Cards in this Set
- Front
- Back
|
What does a punnett square show?
|
DIfferent allele combinatoins
|
|
|
Give a small definition of a dominat allele in your own words.
|
Shows most of the time
|
|
|
Give a small definition of a ressesive allele in your own words.
|
Shows less because the dominat allele 'dominates' over it
|
|
|
Give an example of a Homozygous ressiseve genotype with the letter 'A'.
|
aa
|
|
|
Give an example of a homozyguos dominat genotype with the letter 'M'.
|
MM
|
|
|
Give an example of a heterozygus genotyoe with the letter 'B'.
|
Bb
|
|
|
What are fossils?
|
Remains of extinct organisims perserved in amber of sedimantary rock
|
|
|
Give examples of a fossil and how fossils are formed.
|
Ferns, insects, mammoths. Sedimantary rock form over the fossil.
|
|
|
What are the different ways scientists can determine the evolutoinary relatoinships between organisims?
|
Homologus structures or similar bone structures
|
|
|
Use a vocabulary term to describe ' the gradual change on an organisim over time"
|
Gradualisim
|
|
|
Only organisims of the same speices an produce ...
|
Similar offspring
|
|
|
Use a vocabulary term to describe 'physical characteristics of organisims/
|
traits
|
|
|
Gregor mendel studied pea plants in order to study genetics. What did he do in order to conduct his study?
|
Cross pollinatoin
|
|
|
Use a vocabulary terms to describe ' factors that control traits'
|
Genes
|
|
|
What are alleles?
|
Alternate form of a gene
|
|
|
1If an organisim has two different alleles for a trait , it is said to be ...
( Two terms) |
Heterozygus & hybrid
|
|
|
What is probability ?
|
Likleyhood of an event
|
|
|
If a homozygus white pig (bb) is crossed with a heterozygus black pig (Bb) , What is the probabiltiy of the offspring being black? Write the answer as a percent.
( use a punnett square to figure this out) |
50 %
|
|
|
What is an organisim's phenotype?
|
Physical apperance
|
|
|
What is an organisim's genotype
|
Genetic makeup
|
|
|
What does codominance mean?
|
When neither of the alleles are dominat or ressesive
|
|
|
What is the cromosone theory of inheritance state?
|
All genes are located on Chromosones
|
|
|
What is created thorugh the process of Meiosis?
|
Sex cells
|
|
|
How many chromosones des each sex cell contribute to produce offspring?
|
23
|
|
|
Give examples of traits that are contolled by multiple alleles
|
Height
|
|
|
What are multiple alleles ?
|
3 or more alleles that make the varied traits.
|
|
|
What is the Male combinatoin of sex chromosones?
|
XY
|
|
|
What is the Female combinatoin of sex chromosones?
|
XX
|
|
|
Why are sex linked traits more common in males than females?
|
The Xy combintoin is not matching. The y chromosone is not able to mask anything of the x chormosone. So there is no such thing as a male carrier for a sex linked trait.
|
|
|
What is a carrier?
|
Someone who carries the disorder but does not have the disorder.
|
|
|
What is a pedigree used for?
|
It's a sort of family tree for genetic disorders.
|
|
|
What are genetic disorders caused by?
(HInt X-men) |
Mutatoins on a chromosone
|
|
|
Name the genotypes for somone with down syndrome.
|
Men : Xd Y
Women : Xd Xd |
|
|
Describe sickle cell.
|
Blood cells loke like 'c' Instead of 0
|
|
|
Describe ytostic firbrosis
|
Messes with the respiratory system
|
|
|
What is a karyotype?
|
Picture of all chromosones
|
|
|
What is inbreeding?
|
Having sex with your own family
|
|
|
What is hybridizatoin?
|
Mixing traits to get a cetain desired traits
|
|
|
What did Darwin notice about the Finches on the Galapagos islands ?`
|
Varied adaptatioins such as beaks claws
|
|
|
What is an adaptatoin
|
a mutatoin that helps an animal survive. It accumulates as time goes on.
|
|
|
What is nautrul selectoin
|
Nature choosing who will survive
|
|
|
What is it when an organisim produces more offspring than what will survive?
|
Overproductoin
|
|
|
What are Varitatoins?
|
Similar but somehow different traits
|
|
|
How could natrul selectoin lead to evolutoin?
|
Whoever had the better traits will survive. Those traits will accumulate.
|
|
|
Who do genes play a role in evolutoin
|
Mutatoins make up the better and worse mutatoins
|
|
|
What is the main way that a species can form?
|
Speciatoin
|
|
|
What are the steps in Speciatoin?
|
Seperatoin adaptoin reproductoin divisoin
|
|
|
Im what kind of rock do fossils form in?
|
Sedimantary rock
|
|
|
What is the record scientists use to learn more about extinct species?
|
Fossil record
|
|
|
What is a branching tree?
|
A diagram used to see which organisim had a closer relatoin.
|
|
|
What does it mean for a species to go extinct?
|
Techically they dissapear from the face of the earth
|
|
|
If two organisims look very similar during the early stages of dvolopment what are the structures called ?
|
Homologus structures
|
|
|
What are vestigal structures?
|
A part of your body that has no purpose that is still in your body. It does no harm and it does no good either.
|
|
|
What are anatomical structures ?
|
Body structures.
|
