Shared Flashcard Set

Details

Genetics & Heredity
Study guide
58
Science
7th Grade
10/23/2007

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Cards

Term
You can tell the difference between human males and females by looking at a photograph of their chromosomes.
Definition
False
You look at a karotype.
Term
Sex cells have half the number of chromosomes as other body cells
Definition
True
Term
Human male sex cells are known as eggs.
Definition
False
Sperm are male sex cells, eggs are female sex cells
Term
Probability is the mathematical chance that an event will occur.
Definition
True
Term
Two forms of the the same genes are known as alleles.
Definition
True
Term
There are 92 chromosomes in a normal sex cell.
Definition
False
There are 23 pairs.
Term
Punnett used plants to study how traits are passed from parent to offspring.
Definition
False
Mendel, not Punnett worked with pea plants
Term
An organism's physical appearance is known as it's genotype.
Definition
False
 Phenotype is an organism's physical appearance
Term
A genogram traces a family's history through the generations.
Definition
True
Term
Bean seeds can grow without sun, soil or water.
Definition
False
Nothing can survive without these substances
Term
When pollen from 1 flower or plant can fertilize the eggs of the same plant it is......
Definition
Self-pollinating
Term

The following are traits that you can inherit....

Definition
*eye color
*shape of nose or ears
*skin color
*hair color
Term
If two 1st generation, self- pollinating plants are crossed, Pp x Pp, what is the probability that offspring will show the dominant trait?
Definition
3/4 or 75%
Term
The passing of traits from parent to offspring is....
Definition
Heredity
Term
The inherited combination of alleles or genes is known as the offspring's....
Definition
Genotype
Term

How many sets of instructions does a fertilized egg receive from each parent for each characteristic?

Definition
ONE set
Term
The following 1950's scientists collaborated their studies in the discovery of DNA....
Definition
*Rosalind Franklin
*James Watson
*Maurice Wilkins
*Francis Crick
Term
If you cross a white flower (pp) with a purple flower(PP), what are the genotypes?
Definition
All Pp
Term
The dominant physical traits for a cross of a white flower(pp) and a purple flower(PP) are...
Definition
all purple flowers
Term

The process that produces sex cells is.....

Definition
Meiosis
Term
Genes are found on....
Definition
Chromosomes
Term
The trait that always appears in the F1 or parent generation is the....
Definition
Dominant trait
Term
The trait that is always masked in the F1
generation is the....
Definition
Recessive trait
Term

Name the traits that plants can inherit.

Definition
* color of its pods
*smooth or wrinkled peas
*the color of its flower
Term
This person developed a square that is used as a visual to show combinations of genetic crosses...
Definition
Punnett
Term
This person proposed that genes are located on chromosomes....
Definition
Sutton
Term
Friction is a force that...
Definition
opposes motion
Term
Terminal velocity is a result of the interaction between...
Definition
gravity and air friction
Term
Forces that are opposite and equal are...
Definition
balanced forces
Term
The ability to do work is called...
Definition
energy
Term
Fd=W is the formula for...
Definition
work
Term
Anything held over one's head ....
Definition
isn't defined as work
Term
Complete cicuit designs are...
Definition
series circuits
Term
As skydivers fall the "drag" eventually will...
Definition
equal the force of gravity
Term
In order to move forces you need...
Definition
unbalanced forces
Term
Wet and dry cell batteries have an...
Definition
electrolyte
Term
Hybrid cars became popular in the...
Definition
20th century
Term
Scientists use the ...
Definition
International Metric System
Term
Independent variables are labeled on the...
Definition
"X" axis
Term
The weight of an object is measured by...
Definition
gravitational force
Term
The unit of measure for power is called a...
Definition
watt
Term
3.55 meters=
Definition
355 centimeters
Term
Electrical energy is transformed back into_______when a battery charger is used.
Definition
chemical energy
Term
Two _____ and a ______ solution paste is used to make a battery
Definition
electrodes,electrolyte
Term
Draw a series circuitry on the back of this card.
Definition
Term
Draw a parallel circuitry on the back of this card.
Definition
Term
The 3 main premises of the cell theory are:
Definition

1. All living things are made up of cells

2. Cells are the basic units of structure and function of living things

3.All cells come from other cells          

 

 

Term
Two scientists that observed plant cells were:
Definition
Hooke and Schleiden
Term
The molecule in all plant cells that makes strands in celery are:
Definition
cellulose
Term

Cell walls are composed of:

 

 

Definition
cellulose
Term
Cell membranes are composed of:
Definition
Protein, cholesterol and lipids
Term

The state of balance or equilibrium is:

 

Definition
Homeostasis
Term
The control center of the cell is:
Definition
The nucleus
Term
What structure is responsible for the formation of ribosomes?
Definition
The nucleolus
Term
Name the messenger responsible for transporting genetic information?
Definition
RNA
Term
Cellular respiration  within the:
Definition
Mitochondria
Term
Water and ___________are converted to ATP when oxygen is present.
Definition
glucose
Term
This is responsible for packaging proteins within the cells
Definition
golgi complex
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