Genetics
Heredity
Reproduction
Punnet Squares
7th Grade
100

What is genetics?

The study of heredity.

100
What is heredity?
The passage of genetic instructions (traits) from parent to offspring.
100

How are traits passed from parents to offspring? 

What is through genes and chromosomes during reproduction?
100

Some genes can be hidden or covered up by another. They are normally less common in populations. These are considered to be _______? 

Recessive genes

100

Where is DNA mostly found within a cell?

What is the nucleus

200

What process of reproduction would result in genetic variation in offspring?

Sexual reproduction results in genetic reproduction.

200

What determines how a tiger gets it's stripes? 

What are their parents and heredity? 

200

Name two traits that could be inherited from a parent. 

What is: hair color, eye color, skin, height, freckles, widows peak. 

200
What is the punnet square used for?
To determine the outcome of genetic crossings.
200

How can these 2 genotypes be described: Hh and tt?

Hh-heterozygous

tt- homozygous dominant

300

What are the highly organized threadlike structures of DNA that carry genes called?

Chromosomes

300

What is the "control center" of the cell ?

What is the Nucleus 

300

Fragmentation is another form of what kind of reproduction?

Asexual reproduction

300

A black feathered chicken (BB) is crossed with a black feathered chicken (BB). What percentage of offspring will be black feathered?

100%

300

What is a probable reason that a trait skips a generation?

The trait is recessive.

400

Inherited traits that children get from their parents come from-

Genes

400

The different versions of a gene are called ____?

alleles


400
For some traits, only one copy of a particular gene is needed to show a given trait. These genes are referred to as-
Dominant
400

The likelihood that a particular event will occur.

probability

400

What would make butterflies of  the same species can different colors?

What is receiving different genes that determine their color?

500
What do we call the genetic make up of the individual, represented by a set of letters?
Genotype
500
How many chromomsomes do humans have?
46 or 23 pair
500

Two dark brown rabbits have four offspring. Three of the offspring are dark and one is white. What does this tell you about the parents' genes for fur color?

Dark brown is dominant and white fur is recessive. Both parents are heterozygous.

500

Sonny has a recessive gene for blond hair and marries Mallory who has a heterozygous genotype and brown hair. Sonny and Mallory have a child together, what is the chance that their child will have blond hair?

50% chance the child will have blond hair.

500

An organism that always produces offspring with the same form of a trait as the parent.

purebred

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