Ch 7, 6th Grade Question Preview (ID: 41940)


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

A section of DNA that has genetic info for one trait
a) gene
b) allele
c) chromosone
d) DNA

An adaptation that helps a species blend in with its natural surroundings
a) camouflage
b) mimicry
c) alleles
d) inheritance

How a trait appears or is expressed
a) genotype
b) phenotype
c) appearotype
d) chromotype

A permanent change in the sequence of DNA in a gene
a) adaptation
b) variation
c) mutation
d) differentiation

An adaptation in which one species looks like another species
a) camouflage
b) mimicry
c) adaptation
d) prints

Where is DNA located?
a) in chromosomes
b) in genes
c) only in reproductive cells
d) in plants and fish only

Why do organisms have pairs of chromosomes?
a) 2 is better than 1
b) in case 1 is damaged, the other will do the duties of both
c) the egg and sperm each give a half set of chromosomes
d) organisms only have 1 chromosome

Humans have ___ chromosomes.
a) 23
b) 46
c) 12
d) 96

A gene for a single trait is called a(n)
a) chromosomes
b) genotype
c) phenotype
d) allele

The process that creates sperm or egg cells
a) mitosis
b) meiosis
c) photosynthesis
d) cellular respiration

When a sperm and egg join, ___ occurs.
a) pollination
b) asexual reproduction
c) fertilization
d) none of the above

T/F: Most mutations occur randomly.
a) true
b) false
c)
d)

What can happen because of mutation?
a) the organism can be helped
b) the organism can be harmed
c) nothing
d) all of the above

Variations occur through
a) mutatios
b) asexual reproduction
c) skills picked up in an organism's lifetime
d) none of the above

In selective breeding, what chooses which traits are passed down?
a) Mother Nature
b) the parents
c) humans
d) bacteria

The ability of an organism to keep its internal conditions within certain limits
a) metabolism
b) photosynthesis
c) mutualism
d) homeostasis

A biochemical change that enables a species to increase survival or maintain homeostasis
a) structural adaptation
b) behavioral adaptation
c) functional adaptation
d) none of the above

T/F: A parrot picking up a ball and putting it in a basketball net is an inherited trait
a) true
b) false
c)
d)

The offspring created through asexual reproduction is
a) genetically identical to the parent
b) similar to the parent
c) nothing like the parent
d)

An organism's complete set of genes is its
a) genotype
b) phenotype
c) chromosomes
d) allele

Play Games with the Questions above at ReviewGameZone.com
To play games using the questions from above, visit ReviewGameZone.com and enter game ID number: 41940 in the upper right hand corner or click here.

TEACHERS / EDUCATORS
Log In | Sign Up / Register

Help / Support / FAQ




Gaming Links