Genetics
Genetic Variation
Reproduction
Mitosis Cycle
Punnet Squares
100

How are traits passed from parent to offspring?

Through genes during reporduction.

100

TRUE/FALSE: Different species have different chromosome numbers. 

TRUE

100
Asexual reproduction produces offspring that are genetically ____________ to the parent.
Identical
100

What phase is this?

- DNA starts to organize into chromosomes.

Prophase

100

What is the Punnett square used for?

To determine the outcome of genotypes and phenotypes of offspring.

200

What is heredity?

The study of traits passed down from one generation to the next.

200

Explain the difference between HH, Hh and hh.

HH: homozygous dominant Hh: heterozygous hh: homozygous recessive

200

Sexual reproduction produces offspring that are genetically _____________ to the parents.

Different

200

What phase is this?

- Sister chromatids are pulled apart to opposite sides of the cell.

Anaphase

200
Some genes can be hidden or covered up by another. These are considered to be-
Recessive
300

How many single chromosomes can be found in the reproductive cells (eggs or sperm) of your parents.

23 single Chromosomes

300

Name 3 ways genetic variation can be increased.

Mitosis - cell splitting apart

Changes in environmental conditions

Mutations - Errors in DNA replication

300
If you are studying a population of genetically identical individuals, you can conclude that these individuals reproduce how?
Asexually
300

What phase is this?

- The longest stage of mitosis where the DNA is replicating.


Interphase

300
A black chicken (BB) is crossed with a black chicken (BB). What percentage of offspring will be black?
100%
400
Inherited traits that children get from their parents come from-
Genes
400
The physical trait observed in an offspring is known as it's -
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

What phase is this?

- Sister chromatids move to the middle of the cell before division. 

Metaphase

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%
500
What do we call the genetic make up of the individual, represented by a set of letters?
Genotype
500

If all cells in your body carry all your DNA. What is the main reason different parts of your body look and act differently? 

Different types of cells use different genes.

500

What word is defined as "The different forms of a gene."

Alleles

500

What phase is this?

- Two distinct cells start to form, nuclear envelope is starting to develop.

Telophase

500
Long ears are dominant (E) in rabbits. If one parent is homozygous dominant for the long ear trait and the other homozygours reccessive (e), what is the only possible genotype of the offspring?
Ee
M
e
n
u