Genetic Vocabulary Practice

What to do

• Open a blank page in Educreations or Notability

• I will show you a word or letter(s)

• You WRITE what it means, and add a PICTURE/EXAMPLE if you can.

For Example

• If I said “Cell”

• You could write something like “the smallest basic unit of life.”

and

• You could draw a cell

Nucleus

Nucleus

Answer: • Organelle (cell part) where DNA is stored

Examples:

Chromosome

Chromosome

Answer: • A single piece of coiled DNA• A tight bundle of DNA

Examples:

DNA

DNA

Answer: • A molecule containing coded instructions for life

Examples:

Gene

Gene

Answer: • A section of DNA containing instructions

Examples:

Trait

Trait

Answer: • Any feature of a living thing determined by its

genes

Examples:

Allele

Allele

Answer: • One of a number of different forms of a gene

Examples:

Dominant

Dominant

Answer: • Any capital letter• An allele that covers up recessive alleles

Examples:• R• T• B• H

Recessive

Recessive

Answer: • Any lowercase letter• An allele that gets covered up dominant alleles

Examples:• r• t• b• h

Homozygous

Homozygous

Answer: • Any genotype with two of the same alleles

Examples:• rr• RR• BB• bb

Heterozygous

Heterozygous

Answer: • Any genotype with two different alleles

Examples:• Bb• Tt• Hh• Rr

Homozygous Dominant

Homozygous Dominant

Answer: • Genotype with two dominant alleles(homo = same, dominant = big/strong)

Examples:• BB• HH• TT• RR

Homozygous Recessive

Homozygous Recessive

Answer: • Genotype with two recessive alleles(homo = same, dominant = little/weak)

Examples:• bb• hh• tt• rr

Genotype

Genotype

Answer: • The genes (letters) an organism has

Examples:• BB• Bb• bb• TT• Tt• tt

Phenotype

Phenotype

Answer: • The traits (looks) an organism has

Examples:• Blue Eyes• Brown Eyes• Hitchhiker’s Thumb• Black Hair• Curly Hair• Dimples

Artificial Selection (aka Selective Breeding)

Artificial Selection (aka Selective Breeding)

Answer: • The modification of traits by choosing which

organisms reproduce

Examples:

Genetic Engineering

Genetic Engineering

Answer: • The modification of traits by “messing with”

the organism’s DNA.

Examples:

Genetic Engineering

Genetic Engineering