5.4.22

Question 1

A change in a gene or chromosome is called ____.

Answer 1

mutation

Question 2

_____ is the process by which the numbers of chromosomes is reduce by half to form sex cells.

Answer 2

Meiosis

Question 3

According to the chromosome theory of inheritance ____ are carried from the parent to the offspring.

Answer 3

genes

Question 4

____ is an organism that has 2 different traits.

Answer 4

Heterozygous

Question 5

The different forms of a gene are called ____.

Answer 5

alleles

Question 6

An allele whose trait always shows up in an organism when the allele is present is _____.

Answer 6

dominant

Question 7

When a plant as 2 dominant alleles for tall stems how is it written?

Answer 7

TT

Question 8

The likelihood that an event will happen is called ___.

Answer 8

probability

Question 9

An organism’s phenotype is its ____.

Answer 9

physical characteristic

Question 10

For codominant traits heterozygous organisms have a phenotype that shows only the ____ allele.

Answer 10

dominant

Question 11

If the body cells of an organism have 12 chromosomes, how many chromosomes do the sex chromosomes have?

Answer 11

24

Question 12

Punnet squares are useful because they show the ____ results of the genetic cross.

Answer 12

possible

Question 13

The main function of genes is to control the production of ____.

Answer 13

proteins

Question 14

The cytoplasm is the part of the cell in which ____ is made.

Answer 14

protein

Question 15

IN the first stage of protein synthesis, messenger ____ is made using DNA as the pattern.

Answer 15

RNA