Deck 3: Genetics From Mendel to the Human Genome Project

Question 1

Gergor Mendel discovered

A) the mechanism of blending inheritance.
B) genetic principles that only apply to plants
C) the process of inheritance in all sexually reproducing organisms.
D) the principles of inheritance while working as a teacher in France.

Answer 1

the process of inheritance in all sexually reproducing organisms.

Question 2

When crossing pure breeding tall and short pea plants

A) no offspring appear.
B) all the offspring will be tall.
C) the height of the next generation of pea plants is intermediate between the two parents.
D) all the offspring will be short.

Answer 2

the height of the next generation of pea plants is intermediate between the two parents.

Question 3

The common pea plant is a true hermaphrodite in that

A) it has both stamens and pistils.
B) it cannot self-fertilize.
C) the offspring always has a blended average of the parental traits.
D) Mendel could not hybridize them.

Answer 3

it has both stamens and pistils.

Question 4

Which of the following is a true statement?

A) All species have the same number of chromosomes.
B) Somatic cells have the diploid number of 2N=46 chromosomes in Homo sapiens.
C) Chromosomes are all the same size and shape.
D) Sexual reproduction involves the fusion of two somatic cells.

Question 5

In mammals

A) males are heterogametic and females are homogametic.
B) all sexes are heterogametic.
C) all sexes are homogametic.
D) females determine the sex of the offspring.

Question 6

Hemophilia and red-green color blindness

A) are linked on the Y chromosome.
B) result when the offspring has two X (XX) chromosomes.
C) are the result of autosomal inheritance.
D) are sex-linked traits.

Question 7

Genetic Drift

A) is the same as gene flow.
B) is sampling error in gene frequencies from one generation to the next.
C) related to new sources of genetic variation.
D) is also defined as differential survival of individuals.

Question 8

The modern evolution synthesis

A) is a reconciliation of Darwinism (natural selection) and gene flow.
B) combined natural selection and genetics.
C) explained the inheritance of continuous variables.
D) excluded Mendelism.

Question 9

The Human Genome Project (HGP)

A) has identified approximately 200,000 genes that make up a human.
B) is not interested in the ethical issues raised by the project.
C) has identified about 20,000 to 35,000 genes in a human.
D) is now called molecular chemistry

Question 10

Rosalind Franklin

A) was an uppity lab assistant.
B) took the first photograph of DNA by X-ray diffraction.
C) was grateful to Watson for interpreting her photograph of DNA.
D) was not awarded the Nobel prize with Crick, Watson and Wilkin because she not deserve it.

Question 11

Gregor Mendel failed to publish his paper on his breeding experiment on the common pea plants.

Question 12

A 9:3:3:1 ratio is associated with a monohybrid cross.

Question 13

Once a recessive trait disappears, it is gone forever.

Question 14

The Law of Segregation states that genes segregate independently of each other during reproduction.

Question 15

Mendel's principles of inheritance have been proven wrong by the modern science of genetics.

Question 16

Gregor Mendel was a _____ living in Brno, Moravia, now known as the Czech Republic

Question 17

The first set of hybrid offspring is known as the ________.

Question 18

The _____________ states that genes come in pairs and separate during meiosis.

Question 19

___________ is important in growth and wound healing.

Question 20

___________ produces haploid gametes.