Evolution/Heredity Basics

When organisms of the same species have slightly different traits

• Species

• Variation

• Mutation

• Adaptation

Tags

NGSS.MS-LS4-4

NGSS.MS-LS4-2

Which chemicals pair up in DNA

• Adenine-Thymine

  Cytosine-Guanine

• Adenine-Guanine

  Thymine-Cytosine

• Adenine-Cytosine

  Thymine-Guanine

• None of the above

What are the sides of a DNA molecule made of

• Sugar, Phosphates

• Adenine, Thymine, Guanine, Cytosine

• Hydrogen, Oxygen

• Nitrogen, Amino Acid

Two organisms are of the same species if....

• They look alike

• Have the exact same DNA

• Can produce fertile offspring

• Can mate

Organisms that are best suited to their environment are more likely to survive and pass on their genes. What is this idea called?

• Evolution

• Natural Selection

• Variation

• Speciation

Tags

NGSS.MS-LS4-4

The genetic make-up of a population can change over time. This idea is called

• Natural Selection

• Evolution

• Variation

• Adaptation

Tags

NGSS.MS-LS4-4

Different forms of the same gene are called

• Traits

• Genes

• Alleles

• Adaptations

Sections of ____________ that code for a specific __________ are called ____________.

• GENES

  TRAITS

  DNA

• DNA

  GENES

  TRAITS

• TRAIT

  DNA

  GENES

• DNA

  TRAIT

  GENES

The form of a gene that masks (covers up) another form.

• Recessive

• Dominant

• Protein

• Allele

Dominant Traits are _____________ more common than recessive traits

• Sometimes

• Always

• Never

• 50% of the time