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Genetics Yearlong Study Guide
Unit 4 Study Guide MLK
31
Science
7th Grade
05/24/2006

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Cards

Term
Why do offspring look like their parents?
Definition
Because offspring inherit genetic material from the parents
Term
Why might offspring resemble their biological parents?
Definition
because offspring inherit their genes from their biological parents.
Term
Which of the following is an inherited characteristics:
natural hair color, brown eyes, dimples, skin color,widow's peak.
Definition
All of those are inherited.
Term
What is a gene?
Definition
A segment of DNA that determines a particular trait.
Term
The factors which control your traits are called______________.
Definition
Genes
Term
How do offspring get their genetic information?
Definition
Information is passed from parents.
Term
Which picture represents the phase where the chromosomes line up along the equator of the cell?[image]
Definition
E
Term
Which picture represents the prase where nuclear membranes re-form around the two sets of chromosomes? ?[image]
Definition
C
Term
Which picture represents the phase where the chromosomes move to opposite sides of the cell? ?[image]
Definition
A
Term
Which picture represents where the DNA and cell organelles are copied? ?[image]
Definition
D
Term
Which picture represents the phase where the chromosomes condense and the nuclear membrane breaks down?[image]
Definition
B
Term
Durning mitosis DNA is duplicated so_______________________________.
Definition
the daughter cells will be identical to the mother cell.
Term
What process is involved when eukarytic unicellular organisms replicate?
Definition
Mitosis
Term
Freckles is a trait which only shows up when inherited from both parents. This means that this trait is a ________ trait.
Definition
recessive
Term
A bent little finger is an inherited trait which is present even when inherited only from one parent. This means that this trait is a __________ trait.
Definition
dominant
Term
Which of the follow is a phenotype?
dimples, PP, Bb, long hair
Definition
dimples
Term
Which of the follow is a genotype?
dimples, PP, long hair, brown eyes,
DNA
Definition
PP
Term
If a purple flower with the genotype Pp mates with a white flowered plant pp how many of their offspring would have a genotype of PP?
Definition
None
Term
Which of the following is a characteristics which you inherited:
your taste in clothing; your favorite music; your eye color; none of the above.
Definition
your eye color.
Term
Where does the genetic information for traits come from?
Definition
parents' DNA
Term
How much DNA does an offspring inherit from each parent?
Definition
50% from mother and 50% from father
Term
How much DNA does an offspring inherit from its biological father?
Definition
1/2
Term
A fertilized egg has 2 sets of instructions. How many sets of instructions does a fertilized egg receive from each parent?
Definition
1 set from each parent
Term
If a purple flower with the genotype Pp mates with another purple flower with the genotype Pp, how many of their offspring would have a phenotype of purple?
Definition
75% would be purple.
Term
If a purple flower with the genotype Pp mates with another purple flower with the genotype Pp how many of their offspring would have a genotype of Pp?
Definition
2/4 or 50%
Term
If a woman has the genotype Cc what would her phenotype be? Note: crooked finger = C and straight fingers = c.
Definition
She would have have crooked fingers.
Term
If a man has the genotype PP what would his pheotype be? Note: P= six fingers/toes and p = five fingers/toes.
Definition
He would have six fingers
Term
If a man had the genotype Bb what would his phenotype be? Note: B = brown eyes and b = blue eyes.
Definition
He will have brown eyes.
Term
What are alleles?
Definition
Alternative forms of a gene
Term
An inherited characteristic of an organism is called a _____.
Definition
trait
Term
If DNA did not replicate during mitosis then_____________________.
Definition
the daugher cells would not be identical to the mother cell.
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