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Anthropology Genetics Intro
Texas State to help prepare for exam one
39
Anthropology
Undergraduate 1
09/13/2010

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Cards

Term
How Many Chromosomes does mitosis start out with?
Definition
46
Term
Definition of Diploid
Definition
The state of having 46 chromosomes
Term
Definition of Haploid
Definition
The state of having 23 chromosomes
Term
How long does mitosis last in men?
Definition
The entire length of their life
Term
Why are proteins so important?
Definition
They are structure molecules, they build everything from bones to skin
Term
How many chromosomes does meiosis start out with?
Definition
23
Term
What is Locus?
Definition
location of a gene in a chromosome
Term
What are Nucleotides
Definition
a molecule when joined together creates DNA and RNA
Term
What Structure is DNA
Definition
Double Helix
Term
What are the four bases of DNA
Definition
Adenine Thymine Guanine Cytosine
Term
What happens during self replication
Definition
DNA makes a identical copy of itself
Term
Where does self replication occur?
Definition
In the nucleous
Term
How does self replication work
Definition
DNA unzips
Hydrogen bonds break apart
Forms 2 single strands
Attracts free nucleotides occording to the pairing rules
Ends up with two identical DNA strands
Term
What is made in the ribosomes
Definition
proteins
Term
What is RNA
Definition
A form of DNA can leave the neucleous
Term
What is found in nuclear DNA?
Definition
Genetic information from both parents
Term
What is mitochondrial DNA?
Definition
A form of DNA that last for over 20,000 years, often referd to as the ancient DNA carries genetic information passed down from mother
Term
What happens if the number of autosomes are changed
Definition
The result is almost always fatal
Term
What happens if the number of sex chromosomes are changed
Definition
leads to sterility and social problems
Term
What is blending?
Definition
offspring are made of equal parts of the mom and dad
Term
What is Preformationism?
Definition
The idea that miniature adults live in gamates
Term
What is a Karyotype?
Definition
when chromosomes are lined up together in order of size and position of centromere, also by genetic info
Term
What did Mendel Discover?
Definition
The basic principles of inheritance that we use today
Term
What was Mendel famous for running test on?
Definition
Peas
Term
What are alleles?
Definition
The traits
Term
How many alleles does everybody have?
Definition
Two
Term
What is a Dominant Trait?
Definition
the traits that have the ability to mask another trait
Term
What is a recessive trait?
Definition
traits that can be masked
Term
When referring to traits what does it mean to be Homozygous?
Definition
to have two copy's of the same alleles
Term
When referring to traits what does it mean to be heterozygous?
Definition
two different copy's of the alleles
Term
What is genotype?
Definition
the gentic coding
Term
What is Phenotype
Definition
physical expression of a trait
Term
What are polygenic traits?
Definition
traits that are continous
Term
Females need two copy's of which type of chromosome?
Definition
X
Term
What is Pleiotropy
Definition
one gene affects many traits
Term
In blood which two antigens are dominant?
Definition
A,B
Term
In blood which antigens are recessive?
Definition
O
Term
What is the Definition of Evolution in Anthropology terms?
Definition
change in allele frequency over time
Term
What is Micro-evolution?
Definition
small scale changes that happen over a few generations, that can be detected in living populations
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