Chapter 3 Test Question Preview (ID: 49150)


Heredity And Genetics. TEACHERS: click here for quick copy question ID numbers.

A pea plant with two tall genes is said to be
a) homozygous tall
b) heterozygous tall
c) recessive
d) karotype

The field of biology that studies heredity is
a) duplication
b) genetics
c) reproduction
d) cell division

In a strand of DNA Adenine (A) goes with Thymine (T) and Cytosine (C) goes with
a) cells
b) cytoplasm
c) guanine (G)
d) RNA

The passing of traits from parents to offspring is called
a) heredity
b) environmental factors
c) DNA
d) chromosomes

An organism receives chromosomes from
a) the environment
b) the atmosphere
c) its parents
d) mutations

The process by which plants with desirable traits are crossed until a new variety of plant is developed is called
a) mutations
b) mass selection
c) recessive traits
d) meiosis

A dominant gene usually shows itself over a
a) environmental factor
b) inherited trait
c) recessive gene
d) sex-linked trait

Color blindness is
a) A sex linked disorder
b) Energy on the DNA strand
c) Heart disease
d) When extra oxygen gets into the body

A human body cell contains how many chromosomes?
a) 10
b) 23
c) 46
d) 40

How many chromosomes does a human egg or sperm carry?
a) 46
b) 13
c) 23
d) 20

Characteristics of an organism are called
a) traits
b) chemicals
c) chromosomes
d) DNA

An organism with two like genes for a trait is said to be (2 capital letters or 2 lower case letters)
a) heterozygous
b) homozygous
c) strong
d) blue eyed

A change in a gene is a
a) gene
b) trait
c) mutation
d) environment

Traits that are inherited with sex chromosomes are
a) mutation traits
b) sex-linked traits
c) controlled traits
d) uncontrolled traits

A gene combination in which a mixture of traits shows is called
a) heredity
b) energy
c) matter
d) codominance

A Punnett square shows combinations of genes and the possible outcomes show possible
a) DNA the organism might have
b) chromosomes the organism might have
c) traits the organism might have
d) hybrids the organism might have

A type of cell division that produces gametes is
a) replication
b) meiosis
c) heredity
d) codominance

A male gamete contains
a) two X chromosomes (XX)
b) one X and one Y chromosome (XY)
c) two Y chromosomes (YY)
d) one chromosome

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