Genetics Sol Review

In a Punnett square, a lower case letter stands for a ____________ allele.

• dominant

• recessive

• homozygous

• heterozygous

T = tall and t = short

In the punnett square shown, what belongs in the missing square

• tt

• Tt

• Bb

• TT

Tags

NGSS.HS-LS3-1

What is an allele?

• A trait

• Different forms of a gene

• DNA

• Different types of parents

Tags

NGSS.HS-LS3-2

How many Chromosomes do we inherit from our parents?

• 23 from dad and 23 from mom, or 46 total

• 13 from dad and 13 from mom, or 26 total

• 13 from dad and 33 from mom, or 46 total

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What are chromosomes?

• They are thread like structures containing DNA found inside the nucleus of our cells

• They are X shaped blobs made of ribosomes

• They are the inherited traits we recieve from our parents

• They are types of alleles found in the mitochondria of a cell

Tags

NGSS.HS-LS3-1

What is a gene?

• An entire chromosome.

• A small part of DNA found in a chromosome that gives our body instructions to build for a specific trait that we have

• Things that are sometimes refered to as XX and XY inside of our cell membranes

• Kind of like a "flavor" because there are 23 kinds from each parent.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

What is the relationship between DNA and chromosomes?

• Chromosomes are made of DNA

• DNA is made of chromosomes

• DNA and chromosomes are the same thing.

• All of the above are correct

Tags

NGSS.HS-LS3-1

The genetic material of all organisms; made up of two twisted strands

• Recessive

• Punnett Square

• Dominant

• DNA

Tags

NGSS.HS-LS1-1

Which of the following genotypes is homozygous dominant?

• A

• Aa

• AA

• aa

Which of the following genotypes is heterozygous?

• Bb

• BB

• bb

• B