Chapter 9 Flashcards
The process through which traits are passed from parents to offspring.
Heredity
Human traits that are passed by heredity or \_\_\_\_\_\_\_\_\_\_\_\_\_ (inherited traits) include: 1. 2. 3. 4.
face
shape
hair color
and blood type
Not every trait that you can observe is passed down by heredity. Some traits are _____________.
An _________ _____________ is one that an organism develops after it is born.
Acquired.
Acquired trait
Why does the flamingo have a beautiful pink color? Where does it come from?
The color comes from pigments in shrimp and certain algae they eat.
The pink color of the flamingo is an example of an ____________ ________________. This kind of trait comes from ______________ with the _______________.
acquired trait.
interactions
environment
Give two examples of acquired traits that are learned.
Dogs learn to follow command and lions learn to hunt.
____________ traits are traits that people deliberately change.
Manipulated
Give one example of a manipulated trait.
Breeds of animals
Types of plants.
What determines the inherited traits of an organism
DNA
Molecules of DNA are passed from one _________________ to the next during cell ______________
generation
reproduction
define chromosomes
Short thick coils of DNA
How many chromosomes do humans have n each cell? How many gamete?
46 23
Define gene:
Short segment of dna that determines an organism’s in inherited traits.
Information about inherited traits is stored in
cells nucleus/dna
List three functions of proteins in the body
control life processes in a cell
to build and make new cells
cause certain traits to appear.
