Biology 6.2

Question 1

What are the chromosome mutations?

Answer 1

Deletion
Inversion
Translocation
Duplication
Non-disjunction

Question 2

What is the deletion chromosome mutation?

Answer 2

Part of the chromosome is lost

Question 3

WHat is the inversion chromosome mutation?

Answer 3

Part of the chromosome breaks off, turns 180 degrees and then joins back on

Question 4

What is the translocation chromosome mutation?

Answer 4

Part of a chromosome attaches to another chromosome

Question 5

What is the duplication chromosome mutation?

Answer 5

Part of the chromosome is overexpressed

Question 6

What is the non-disjunction chromosome mutation?

Answer 6

When chromosomes dont separate in meiosis

Question 7

What is it called when there is an odd number of chromosomes?

Answer 7

Aneuploidy

Question 8

What is it called when there is more than two sets of chromosomes?

Answer 8

Polyploidy

Common in plants

Question 9

What should I do when I have done all these flashcards?

Answer 9

Go and look at the one note sheet

Question 10

What is it called when characteristics are influenced by many genes?

Answer 10

Polygenic variation

Continuous

Question 11

What is it called when characteristics are influenced by only one gene?

Answer 11

Monogenic variation

Discontinuous

Question 12

What is a gene?

Answer 12

A sequence of bases on a DNA molecule that code for a protein, which results in a characteristic

Question 13

What is an allele?

Answer 13

A different version of a gene

Question 14

What is the definition of genotype?

Answer 14

The alleles an organism has

Question 15

What is the definition of phenotype?

Answer 15

The characteristics that the alleles produce

Question 16

What is the definition of locus?

Answer 16

The fixed position of a gene on a chromosome