Traits and reproduction ch 1

How do different protein structures in cells determine traits?

• Different protein structures affect how they connect to other proteins molecules.
• Different protein structures have no effect on connecting genes.
• Different protein structures can change the gene.
• Different protein structures provide instructions.

A characteristic that all members of a species have

• gene

• feature

• trait

A specific characteristic of an individual organism

• feature

• trait

• gene

• gene version

Any difference in traits between individual organisms

• variation

• heterozygous

• homozygous

A random change to a gene that sometimes results in a new trait

• mutation

• variation

• offspring

Each person in a family has the same traits. There are no differences in traits between parents and offspring or among siblings.

• True

• False

Rabbit friends (not related) have different shaped ears because:

• the genes are only standing straight up in the cells of one rabbit's ears

• the rabbits have different versions of the gene for ear shape, which instruct for different proteins that connect in different ways

• Offspring from different parents will always have different ear shapes

What is the scientific term for our differences?

• Proteins

• Genes

• Heredity

• Variation