Ch 10 Test Flashcards Preview

Biology > Ch 10 Test > Flashcards

Flashcards in Ch 10 Test Deck (32)
Loading flashcards...
0
Q

T or f

Mendel discovered predictable patterns in the inheritance of traits.

A

True

1
Q

T or f
Genetics is the branch of biology that involves the study of how different traits are transmitted from one generation to the next.

A

True

2
Q

T or f

The scientific study of heredity is called genetics.

A

True

3
Q

In mendel’s experiments with the flower color of pea plants, only the parental generation produced white flowers.

A

False, in mendel’s experiments with the flower color of pea plants, only the -F1- generation produced white flowers

4
Q

T or f

Mende, concluded that the patterns of inheritance are determined entirely by the environment.

A

F, Mendel concluded that the patterns of inheritance are determine entirely by the -parents-

5
Q

T or f

The law of independent assortment was proposed by Mendel to explain his observations of inheritance patterns

A

True

6
Q

T or f

Genes on chromosomes are the units of inheritance.

A

True

7
Q

T or f

The allele for a recessive trait is usually represented by a capital letter.

A

False, the allele for a recessive trait is usually represented by a lowercase letter

8
Q

T or f

Heterozygous individuals have two of the same alleles for a particular gene.

A

False. Heterozygous individuals have two -different- alleles for a particular gene

9
Q

T or f

The dominant allele for tallness in pea plants is represented by the letter t

A

False, the dominant allele for tallness in pea plants is represented by the letter -T-

10
Q

T or f

All genes have only two alleles.

A

False

11
Q

T or f

A dihybrid cross involved two pairs of contrasting traits

A

True

12
Q

T or f

Crosses involving a study of one gene are called monohybrud crosses

A

True

13
Q

A reproduced process in which fertilization occurs within a single plant is

A

Pollination

14
Q

Mendel produced strains of pea plants through the process of

A

Self-pollination

15
Q

_________ refers to the transmission of traits from parent to offspring in sexually reproducing organisms

A

Heredity

16
Q

In heterozygous individuals, only the ______ allele achieves expression.

A

Dominant

17
Q

A trait that is not expressed in the F1 generation resulting from the cross breeding of two genetically different, true-breeding organisms is called

A

Recessive

18
Q

The principle that states that one factor may mask the effect of another factor is the principle of

A

Dominance

19
Q

In mendel’s experiments, a trait that disappeared in the f1 generation but reappeared in the f2 generation was always a

A

Recessive trait

20
Q

The cellular process that results in the segregation of mendel’s factors is

A

Meiosis

21
Q

Mendel formulated two principles know as the laws of

A

Segregation and independent assortment (heredity)

22
Q

An organism that has two identical alleles for a trait is called

A

Homozygous

23
Q

An organisms’s ________ refers to the set of alleles it has inherited

A

Genotype

24
Q

The likelihood that a specific event will occur is called

A

Probability

25
Q

Heterozygous vs homozygous

A

Heterozygous- different

Homozygous- same

26
Q

Number of cells produced
Mitosis:
Meiosis:

A

Mitosis: 2
Meiosis: 4

27
Q

Daughter cells identical to parents?
Mitosis:
Meiosis:

A

Mitosis: identical
Meiosis: not identical

28
Q

Number of phases in each round of cell division
Mitosis:
Meiosis:

A

Mitosis: 4
Meiosis: 4

29
Q

Can crossing over occur?
Mitosis:
Meiosis:

A

Mitosis: no
Meiosis: yes

30
Q

Do chromosome pairs line up?
Mitosis:
Meiosis:

A

Mitosis: no
Meiosis: yes (metaphase 1)

31
Q

Do chromosomes line up at the metaphase plate (equator) of the cell? Mitosis:
Meiosis:

A

Mitosis: yes
Meiosis: yes