Genetics Overall Past and Present

Which of the following alleles is homozygous (purebred) recessive?

• Tt
• tt
• TT
• t

Tags

NGSS.HS-LS3-1

Which of the following is a phenotype?

• Aa
• red hair
• heterozygous genes
• mutated DNA

Tags

NGSS.HS-LS3-2

How many chromosomes are in a sex cell?

• 46
• 23
• 26
• 43

Tags

NGSS.HS-LS3-2

The mathematical chance that something will happen is known as...

• chance
• luck
• probability

He is known as the father of modern day genetics.

• Gregory Mendel
• Greg Mendel
• Gregor Mendel
• Grace Mendel

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which is a true statements about this picture?

• Brown is recessive
• Brown is dominant
• Blue is dominant
• Blue is codominant

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is not a base found in DNA?

• adenine
• thymine
• cytosine
• uracil

Once replication in a DNA molecule is complete, each new DNA molecule contains 

• two new strands.
• 3 exact copies of strands.
• one new strand and one old.
• two old strands.

Amino acids are the building blocks of... 

• DNA
• RNA
• Atoms
• Proteins

Tags

NGSS.HS-LS1-6

What is a Codon?

• 4 base pairs that transfer to amino acids
• 3 base pairs that transfer to amino acids
• 3 base pairs that transfer to DNA
• 3 base pairs that transfer to mRNA