c17 extensions of mendelian inheritance 2 sb

Question 1

the pattern of inheritance that deals with genes that segregate and assort independently is described by the term ________ inheritance

Answer 1

Mendelian

Question 2

for any given gene, the prevalent allele in a population is known as the ____-____ allele

Answer 2

wild-type

Question 3

If the offspring of a cross show an intermediate phenotype in the heterozygote, the pattern of inheritance is that of _______ dominance

Answer 3

incomplete

Question 4

The presence of more than two alternative forms of a gene in a population is denoted by the term

Answer 4

multiple alleles

Question 5

The phenotypic range exhibited by individuals with a particular genotype under differing environmental conditions is called the _____ of ______

Answer 5

norm of reaction

Question 6

What type of inheritance involves genes that segregate and assort independently?

Answer 6

mendelian inheritance

Question 7

Mendel’s focus on Blank______ genes was pivotal in establishing the science of genetics because it allowed Mendel to formulate basic laws of inheritance.

Answer 7

single

Question 8

What type of allele is defined as the prevalent allele in a population?

Answer 8

wild-type

Question 9

The pattern of inheritance in which the expression of one gene masks the expression of another gene is known as

Answer 9

epistasis

Question 10

In an incomplete dominance pattern of inheritance, a heterozygous individual shows a(n) Blank______ phenotype.

Answer 10

intermediate

Question 11

Traits that show continuous variation over a range of phenotypes are known as Blank______ traits.

Answer 11

quantitative

Question 12

The term multiple alleles refers to the presence of Blank______ or more alleles in the population

Answer 12

3

Question 13

Mendel’s laws of inheritance are used in family planning. For example, they can predict the outcome of crosses, especially in parents that may carry _______ that cause inherited disease in possible offspring.

Answer 13

alleles

Question 14

Mendel’s laws of inheritance are used in family planning. For example, they can predict the outcome of crosses, especially in parents that may carry _______ that cause inherited disease in possible offspring.

Answer 14

alleles

Question 15

What is the norm of reaction?

Answer 15

the phenotypic range by individuals with a particular genotype under different environmental conditions

Question 16

The chance that an event will have a particular outcome is called _____

Answer 16

probability

Question 17

The critical element of Mendel’s research focus was to use Blank______ strains that differed with regard to only one gene.

Answer 17

true-breeding

Question 18

What rule should be used to calculate the probability that independent events will occur together?

Answer 18

the product rule

Question 19

Epistasis is the pattern of inheritance in which Blank______.

Answer 19

the alleles of one gene mask the expression of the alleles of another gene

Question 20

Traits with clearly defined phenotypic variants that can be sorted into distinct categories are known as
______ traits.

Answer 20

discrete

Question 21

In agriculture, Mendel’s laws of inheritance are used to develop commercially important Blank______.

Answer 21

• crops
• livestock

Question 22

The formula for a probability that a random event will have a specific outcome is equal to the number of times an event occurs divided by the Blank______.

Answer 22

number of possible outcomes

Question 23

The appropriate time to use the product rule is when dealing with events that are Blank______.

Answer 23

independent