DNA and Genetics

Front

What is a DNA molecule made of?

Back

Base, sugar, phosphate

Front

What is called when an organism has two identical alleles for a trait?

Back

Homozygous

Front

What is the shape of DNA?

Back

Double helix

Front

In which organelle is DNA usually found?

Back

Nucleus

Front

What is the genotype of a heterozygous organism?

Back

Bb

Front

What are the building blocks of DNA?

Back

Nucleotides

Front

What is the function of DNA?

Back

To store genetic information

Front

What is a gene?

Back

A segment of DNA that codes for a protein or trait

Front

What is the difference between genotype and phenotype?

Back

Genotype is the genetic makeup; phenotype is the physical expression of traits.

Front

What is a Punnett square used for?

Back

To predict the genetic outcomes of a cross between two organisms