Genetics
Heredity
Reproduction
Punnett Square
Misc
100
What is genetics????
The study of heredity
100

What is heredity?

The transfer of traits from parent to offspring.

100

Sexual reproduction produces offspring that are genetically ________ to their parents.

Unique or similar

100

Some genes can be hidden or covered up by another. These are considered to be-

Recessive

100

How are traits passed from parent to offspring?

Through genes during reproduction

200

Where are genes located?

On DNA, in chromosomes, in the nucleus

200
Who was the first to study heredity?
Gregor Mendel   
200

Asexual reproduction produces offspring that are genetically ___________ to their parent. 

Identical 

200

What is the punnett square used for?

To determine the probability that an offspring will have certain traits or phenotype.  

200

Name two traits that could be inherited from a parent?

hair color, eye color, height, skin color, freckles, etc..

300
What are threadlike structures that carry genes called?
chromosomes:)
300
What type of organism did Gregor Mendel use to first study heredity?
Pea Plants
300

List the order of genetic material from smallest to largest

Gene, DNA, Chromosome, Nucleus

300

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

100%
300

Why does a Punnet Square use capital and lowercase letters?

Capital = Dominant Trait Lower Case = Recessive Trait

400
Inherited traits that come from their parents come from 
genes
400

The appearance of an organism based on its genotype.

Phenotype

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

Having dimples is dominant (D). Not having dimples is recessive. (d) Both parents are heterozygous for the dominant trait. What percentage of the children will NOT have dimples?

25%
400

What do the terms Homozygous and Heterozygous mean?

Homozygous: same alleles

Heterozygous: different alleles

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

How do you know which allele each parent will pass to its offspring?

You don't, it is random.

500

Long ears are dominant (E) in rabbits. If one parent is homozygous dominant for the long ear trait and the other homozygous recessive (e), what is the only possible genotype of the offspring?

Ee

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.

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