Karyotype basics

By Karina Frey

Karyotype basics

Multiple Choice

Where is the DNA found in a cell?

• Nucleus

• Ribosome

• Cytoplasm

• Virus

Multiple Select

How many DNA strands are in each human cell?

• 23 pairs

• 46

• 1

• Unlimited

DNA is a double helix. When it gets tightly coiled up it is called a chromosome.

APOD: 2012 August 21 - DNA: The Molecule that Defines You

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Chromosomes

• long string of genes 

• found in the nucleus 

• made of tightly coiled DNA

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Multiple Choice

Any change in the sequence of DNA is...

• transgenic shift
• Single Genotype
• Monohybrid Trait
• Mutation

Multiple Choice

A mutation in which only one nucleotide is altered is called a:

• Frameshift Mutation

• Deletion Mutation

• Point Mutation

• Insertion Mutation

Multiple Choice

Anything in the environment that causes a mutation is a(n)

• splicing

• frameshift

• elongation

• mutagen

Multiple Choice

Which of the following is not a mutagen?

• UV Rays

• Processed Food

• Viruses

• Adenine

Multiple Choice

By looking at the chromosomes is this individual biologically male or female? How do you know?

• Female, because they have two X chromosomes

• Male, because they have one X and one Y chromosome

Multiple Choice

How many CHROMOSOME PAIRS does this karyotype have?

• 15

• 30

• 16

• 32

Multiple Choice

How many TOTAL CHROMOSOMES does this plant have?

• 24

• 10

• 12

Multiple Choice

What is the mutation in this persons chromosomes?

• There is only one X

• 7 is shaped like a hockey stick

• There's an extra 21

• 1 is too curved

Multiple Choice

This is called Turners syndrome, can you notice the mutation in the chromosomes?

• Both chromosomes 1 are bent

• There are too many chromosomes

• There are too many of chromosome 3

• There is no Y chromosome

Fill in the Blanks

What can happen if a person has too many or too few chromosomes? They will make too much or too little

which can result in a genetic disorder