AQA Biology P2 DNA and Gene

Which cells do not have paired chromosome in the nucleus ?

(Tick all that apply)

• Gametes

• Muscle

• Animal

• bacterial

What is a gene ?

• A short length of DNA that codes for a protein

• A long length of DNA that codes for a chromosome

• A short length of DNA that codes for a chromosome

• A long length of DNA that codes for a protein

What are different forms of the same gene known as ?

• Amino Acids

• Chromosomes

• Genome

• Alleles

In order of increasing size, how is the genetic material of eukaryotes organised?

• Nucleus → DNA → chromosome

• Chromosome → DNA → nucleus

• DNA → chromosome → nucleus

• DNA → nucleus→ chromosome

Where are chromosomes found in a cell ?

• Cytoplasm

• Nucleus

• Mitochondria

• Ribosome

A gene is a small section of DNA on a chromosome. A gene codes for a particular sequence of a____ a____

A student found six different snails of one species in his garden. All the snails are different. What scientific term describes differences in characteristics between individuals of a species ?

• Variation

• Differentiation

• Geneome

A gene is a small section of DNA on a chromosome. A gene codes for a particular sequence of amino acids. This sequence makes a specific _______

What is the shape of DNA?

• Double helix

• Single helix

• Double chain

• Single chain