Genetics And Human Herdity

Question 0

If Mendel crossed purebred tall pea plants with purebred short pea plants in the F1 produced all tall plants, what would this suggest about this type of inheritance

Answer 0

It is a type of recessive inheritance, the short plant is the recessive gene

Question 1

Why were peas a good choice for Mendel’s work?

Answer 1

Because the plants could be cross pollinated by hand easily, even though they would normally reproduce by self polinating

Question 2

An organisms allele pairs?

Answer 2

Genotype

Question 3

Observable characteristic that is expressed as a result of an allelic pair

Answer 3

Phenotype

Question 4

Alternate form that a single gene might have for a particular trait

Answer 4

Allele

Question 5

An organism with two of the same alleles for a specific trait

Answer 5

Homozygous

Question 6

Organism with two different alleles for a specific trait

Answer 6

Heterozygous

Question 7

This helps predict the possible offspring of a cross between two known genotypes. This make it easier to keep track of the possible genotypes involved in a cross.

Answer 7

Punnent square

Question 8

Mendel’s two laws

Answer 8

1. Mendel’s law of assortment

2. Law of segregation

Question 9

Explain the law of assortment

Answer 9

linked genes usually do not segregate independently

Question 10

Explain law of segregation

Answer 10

states that the two alleles for each trait separate during meiosis. During fertilization, two alleles for that trait unite.

Question 11

A cross such as this one that involves hybrids for a single trait

Answer 11

Monohybrid cross

Question 12

simultaneous inheritance of two or more traits in the same thing

Answer 12

Dihybrid cross

Question 13

Diagrammed family history that is used to study inheritance patterns of a trait throughout several generations and can be used to predict disorders in future offspring

Answer 13

Pedigree

Question 14

Individual heterozygous for a recessive disorder

Answer 14

Carrier

Question 15

Complex inheritance pattern in which The heterozygous phenotype is intermediate between thoseof the two homozygous parent organisms

Answer 15

Incomplete dominance

Question 16

Complex inheritance pattern that occurs when neither allele is dominant and both alleles are expressed

Answer 16

Codominance

Question 17

Having more than two alleles for a specific trait

Answer 17

Multiple alleles

Question 18

The characteristic that is results from the interaction of multiple gene pairs

Answer 18

Polygenic

Question 19

Characteristic controlled by genes on the X chromosomes

Answer 19

Sex-linked

Question 20

Interaction between alleles in which one allele hides effect of another allele

Answer 20

Epistasis

Question 21

Most sex linked traits are found on which chromosome

Answer 21

X

Question 22

Which gender is primarily affected by these traits and why

Answer 22

Male because the X chromosome has no Y chromosome to over power it