Combined: Biology Genetics of Chpt 11 + Pedigrees & Sex-Linked Traits

Question 1

What does "P" stand for

Accepted Answer

parental generation

Question 2

If Individual 3 has the genotype ii, what is the genotype of Individual 4?

Accepted Answer

IAi

Question 3

Phenotype is _____ and genotype is _______

Accepted Answer

how things look, what alleles they have

Question 4

The genotype Tt can also be specified as:

Accepted Answer

heterozygous

Question 5

Colorblindness is a recessive, X-linked trait. What is the genotype of Individual 7?

Accepted Answer

XBXb

Question 6

T or F: There are no homozygous dominant individuals shown in the pedigree.

Accepted Answer

True

Question 7

The alleles or letters used for a codominant problem are

Accepted Answer

CB and CW

Question 8

What does "F1" stand for

Accepted Answer

first filial generation

Question 9

Which individuals are carriers for the X-linked recessive disease shown below?

Accepted Answer

1, 3 & 7

Question 10

This picture is an example of a

Accepted Answer

pedigree

Question 11

What would the phenotype be of a heterozygous crossing

Accepted Answer

3:1

Question 12

Mendel crossed two heterozygous individuals and got what for a genotype ratio?

Accepted Answer

1:2:1

Question 13

Which of the following is not a sex-linked trait?

Accepted Answer

Dwarfism

Question 14

Which of Mendels laws states that one allele masks the other and is always expressed

Accepted Answer

law of dominance

Question 15

Mendel crossed purebred pea plants by transferring pollen and preventing

Accepted Answer

self-pollination

Question 16

Sex-linked traits can appear

Accepted Answer

in males and females

Question 17

A genetic cross can explain

Accepted Answer

the possible outcome of a mating, The principles of probability

Question 18

Autosomal dominant trait. What are the genotypes of Individuals 1 and 2?

Accepted Answer

Aa and Aa

Question 19

X-linked recessive trait. What is the genotype of Individual 3?

Accepted Answer

XBXb

Question 20

Genes are

Accepted Answer

portions of the DNA that code for a protein or trait

Question 21

Traits that are controlled by a gene on the X chromosome are called

Accepted Answer

sex linked

Question 22

What are the genotypes of Individuals 5 & 6?

Accepted Answer

IAi and IBi

Question 23

If a heterozygous individual is crossed with a homozygous dominant, the phenotype ratio is?

Accepted Answer

4:0

Question 24

Mendel started with purebred plants that had different versions of each trait. Today we know

Accepted Answer

Purebred is the same as homozygous

Question 25

Mendel's law that states alleles from different traits separate independently of one another

Accepted Answer

law of independent assortment

Question 26

What type of genetic cross is this?

Accepted Answer

Dihybrid

Question 27

Traits that are controlled by two or more genes are called.

Accepted Answer

polygenic traits

Question 28

Mendel crossed his F1 generation of plants together he got 25% short plants. This shows

Accepted Answer

that the short trait was still there in the first generation

Question 29

Mendel studied many other traits in his pea plants and found several dominant/recessive pairs.

Accepted Answer

true

Question 30

If a heterozygous individual is crossed with a homozygous dominant, the genotype ratio is?

Accepted Answer

2:2:0

Question 31

Harmful X-linked traits are

Accepted Answer

more numerous than Y-linked ones

Question 32

A homozygous recessive genotype could also be specified as

Accepted Answer

rr

Question 33

Autosomal dominant trait. If 8 and 10 marry, what is the chance the offspring has the trait?

Accepted Answer

50%

Question 34

If a heterozygous is crossed with a homozygous recessive, the phenotype ratio would be

Accepted Answer

2:2

Question 35

The alleles or letters used for an incomplete dominant problem would be

Accepted Answer

B and W

Question 36

If the allele for tall is T, and for short is t, the three possible genotypes are

Accepted Answer

TT, Tt and tt

Question 37

Autosomal dominant trait. What is the genotype of Individual 3?

Accepted Answer

aa

Question 38

If individual 1 has a genotype of IAIB, what is the genotype of Individual 2?

Accepted Answer

IBi

Question 39

Y-linked traits are inherited

Accepted Answer

only by males

Question 40

Mendel tracked two different traits at once, like the height and color of peas, to see whether

Accepted Answer

the traits from one parent "stuck together" or not

Question 41

Alleles separate during gamete formation. This is the

Accepted Answer

Law of Segregation

Question 42

Different forms of a gene are called

Accepted Answer

Alleles

Question 43

If a heterozygous is crossed with a homozygous recessive, the genotype ratio would be

Accepted Answer

0:2:2

Question 44

If 13 marries a man with normal vision, what is the chance of a colorblind son?

Accepted Answer

100%

Question 45

What type of inheritance does this pedigree show?

Accepted Answer

autosomal dominant

Question 46

Gregor Mendel studied pea plants in order to

Accepted Answer

understand how traits were passed from parents to offspring

Question 47

What type of inheritance does this pedigree show?

Accepted Answer

sex-linked

Question 48

More than two alleles within a population is a type of genetics called

Accepted Answer

Multiple alleles

Question 49

What type of cross is this?

Accepted Answer

Monohybrid cross

Question 50

Mendel's pure tall plants crossed with pure short plants gave ALL tall offspring. This shows

Accepted Answer

that the tall trait was dominant over the short trait

Question 51

Most likely, the trait being tracked in this pedigree is

Accepted Answer

autosomal recessive

Combined: Biology Genetics of Chpt 11 + Pedigrees & Sex-Linked Traits

Questions 51

Combined: Biology Genetics of Chpt 11 + Pedigrees & Sex-Linked Traits

Questions 51