Genetics Lessons

Mutations can benefit humans because they can:

• Cause illness

• Make an organism more suited to live in its environment.

• Make organisms live shorter lives

• Cause organisms to grow extra limbs.

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Mutations are SOMETIMES helpful to the organism.

• true

• false

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Chromosomes are made of

• DNA

• genes

• proteins

• traits

Tags

NGSS.MS-LS1-1

Which one is a chromosome?

• A

• B

• C

• D

Tags

NGSS.MS-LS3-1

Which one is DNA?

• A

• B

• C

• D

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Selective breeding is...

• a process to create an organism with desired traits from parents with those desired traits

• natural method of producing offspring with desired traits

• creating a new species

• making organisms reproduce during times of stress

"T" is dominant, "t" is recessive. If an organism has the genes "Tt."

Which will trait will result?

• "T" dominant

• "t" recessive

What should you use to predict the traits of offspring when you know the genes of two parents?

• a graph

• a flow chart

• a data table

• a Punnett square

What allele combination should go in the missing box?

• AA

• Aa

• aa

• none of these

Tags

NGSS.MS-LS3-2

"G" is dominant, "g" is recessive. If an organism has the genes "gg." Which will trait will result?

• "G" dominant

• "g" recessive