DNA / RNA / Genetics Review

Match the person with their achievements:

• Rosalind Franklin

• "Father of Genetics" Studied Pea Plants

• Francis Watson & James Crick

• Created a model of DNA

• Gregor Mendel

• Used X-ray crystallography to discover the structure of DNA. Took Photo 51.

Answer explanation

Rosalind Franklin took this famous photograph and had her work stolen from her.

Tags

NGSS.HS-LS1-1

Organize these options into the right categories

Groups:

(a) DNA

,

(b) RNA

• ATCG

• Double helix shape

• GUAC

• 
• 
• Single Strand

Answer explanation

DNA:

Bases A, T, C, G

Double Helix Shape

RNA:

Bases G, U, A, C

Single Stranded

Tags

NGSS.HS-LS1-1

A piece of DNA

• Gene

• RNA

• Ribosome

• Protein

Answer explanation

A gene is a piece of DNA that has the specific code to make a protein.

Tags

NGSS.HS-LS1-1

The nucleus holds​ (a)   while the ribosome makes​ (b)   .

• DNA
• protein
• energy
• mitochondria

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

Mutations are random. They can only be passed down if they occur in

• sex cells (gametes)

• leaf cells

• skin cells

• body cells

Answer explanation

Mutations occur randomly

They can only be passed down if they occur in SEX CELLS (gametes, sperm & egg)

In plants, sperm is the pollen and eggs are in the ovule.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS4-2

Here are 3 genotypes for purple flowers: Pp, PP, pp. Which ones carry the recessive allele?

• PP only

• pp only

• Pp & pp

• Pp and PP

Answer explanation

recessive alleles are written in lowercase letters. The recessive allele is lowercase p in this case. This means:

Pp and pp carry the recessive allele

PP and Pp carry the dominant allele

Organize these options into the right categories:

Groups:

(a) Heterozygous

,

(b) Homozygous

• Alleles are the same

• Hh

• hybrid

• AA, aa

• Alleles are different

• Ww

• YY, yy

• purebred

Answer explanation

Hetero = different

Homo = same

Tags

NGSS.MS-LS4-4

Organize these options into the right categories

Groups:

(a) Genotype

,

(b) Phenotype

• What it looks / acts like

• Physical description

• genetic makeup

• Shown with letters

• Spotted, not spotted

• Ss, ss, SS

Tags

NGSS.HS-LS3-1

Which type of dominance is shown in the picture?

• Codominance

• Incomplete dominance

• Regular dominance

• None of these answers

Answer explanation

CO = together

In codominance, the traits show up TOGETHER

Which type of dominance is shown in the picture?

• Codominance

• Incomplete dominance

• Regular dominance

• None of these answers

Answer explanation

IN = NOT

In incomplete dominance, the heterozygous organism is a BLEND.