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Hodgson-Heredity
Hodgson-Heredity
47
Science
7th Grade
12/04/2014

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Cards

Term
T/F: A mutation is a change in the DNA sequence.  The change is always harmful.
Definition
False.  It can sometimes be helpful (aka animals that live in a particular area are born with a fur color that blends into the surroundings better than the others)
Term
T/F: Deletions occur when a segment of DNA is repeated.
Definition
True
Term
What is deletion?
Definition
A segment of DNA is removed from a chromosome.
Term
What is inversion?
Definition
A segment is DNA is flipped.
Term
What is insertion?
Definition
A segment of DNA is removed from one chromosome and added to an unrelated chromosome.
Term
What is translocation?
Definition
2 segments from different chromosomes are changed with each other.
Term
What is duplication?
Definition
A segment of DNA is repeated.
Term
What is a mutagen?
Definition
Any chemical that causes a change in the DNA sequence.
Term

What type of mutation is the follwing:

 

CAAGGTTGCAAG to CAGTTGCAAG

Definition
Deletion
Term

What type of mutation is the following:

 

AGTTACCAGGC to AGTTTACCAGGC

Definition
Insertion
Term
What are the types of mutations?
Definition

deletion

duplication

inversion

insertion

translocation

Term
T/F:  You inherit one allele from each parent.
Definition
True
Term
What is genotype?
Definition
The combination of alleles for a certain gene (Bb).
Term
What is phenotype?
Definition
The observable traits from the alleles (brown hair).
Term
What is heterozygous?
Definition
Having two different alleles (Rr)
Term
What is homozygous?
Definition
Having two of the same alleles (BB).
Term

A family adopts a baby girl from another country.  When the baby grows up, in which way is she most likely to be similar to her adoptive parents?

Have the same eye color

speak the same langauge

have the same hair color

be the same height

Definition
Speak the same language
Term
Segments of DNA that contain information for a specific inherited trait are located in
Definition
the chromosomes
Term
DNA is formed as a double helix.  Each strand of DNA carries-
Definition
Genetic material
Term
If black hair is B and white hair is b, what would be the result of a cross between two parents with Bb?
Definition
mostly black with some white
Term
The study of how traits are passed from parents to offsping is called __________.
Definition
genetics
Term
The blueprint or set of instructions for every one of an organism's cells to build the organism is called ________.
Definition
DNA
Term
____________ and ______________ make up the backbone of the DNA ladder.
Definition
sugar and phosphate
Term
What can cause a mutation to occur?
Definition
mistakes in mitosis or meiosis, chemicals, or radiation
Term
Sections of DNA that control specific cell activities and characterstics of every organism are called _______.
Definition
genes
Term
Who was the monk that worked with pea plants to learn about inheritance?
Definition
Gregor Mendel
Term
Why were pea plants chosen to study for inheritance?
Definition

easy to grow

grew quickly

traits were easy to tell apaer

Term
The trait that is always shown is the _____________ trait
Definition
dominant
Term
The trait that is usually not shown or hidden is the _______________ trait
Definition
recessive
Term
If an organism is TT for it's genes, it is said to be _______________.
Definition
Homozygous dominant
Term
If an organism is tt for it's genes, it is said to be ___________________
Definition
homozygous recessive
Term

What is the other side of the DNA helix if one side is

ATGCTTGATACA

Definition
TACGAACTATGT
Term
In DNA, A always pairs with _____________ and C always pairs with ___________
Definition
T and G
Term
A checkerboard type diagram used to find the possible outcomes of offspring of 2 parents.
Definition
Punnett Square
Term
A dominant trait is shown with a ___________________, and a recessive trait is shown with a _________________________
Definition

Captial letter

Lowercase letter

Term
If T represents a tall factor and t represents a short factor, what could the genotypes of tall plants be?
Definition
Tt or TT
Term
T/F: Every human trait has one dominant allele and one recessive allele.
Definition
False
Term
Snapdragons have a dominant red allele and a dominant white allele for flower color. What is the genotpye for flower color of a heterzygous flower?
Definition
RW
Term
DNA is made up of long chains of ____________________________
Definition
nucleiotides
Term
DNA stands for ________
Definition
deoxyribonucleic acid
Term
The DNA double helix has the ___________ and ________ groups on the outside, and the ____________ connecting the two strands on the inside of the helix.
Definition
sugar, phosphate, bases
Term
What is the first step in DNA replication?
Definition
the DNA helix unwinds like a zipper.
Term
When does DNA replication take place?
Definition
Interphase
Term
Are genetic disorders contagious?
Definition
no
Term
What is the genotype of males with Klinefelter syndrome?
Definition
XXY
Term
How many bases make up the human genome?
Definition
about 3,000,000,000
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