NCEA Level 1 Genetic Variation

The passing of traits from parent to offspring 

• Heredity 
• Genetics 
• Hybrid 
• Probability 

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which is heterozygous ?

• Tt

• TT

Which is homozygous ?

• Zz
• SS

The genetic makeup of an organism

• heterozygous

• punnet square

• genotype

• phenotype

A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?

• 100% BB
• 75% BB and 25%Bb
• 50 % BB and 50% Bb
• 50% Bb and 50% bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Genotype refers to the ...

• physical expression of the genes
• the possible combination of alleles in a gene
• whether an allele is dominant or recessive
• how an organism will appear

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?

• Purebred
• Hybrid

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An offspring will receive how many alleles from each parent to determine a specific trait?

• one
• two
• three
• five

Tags

NGSS.HS-LS3-1

What is a phenotype?

• The genetic make up (code)

• The physical trait

Having two of the same genes for the trait (sometimes called purebred).

• homozygous

• hetrozygous

• protein

• chromosome