Genetics Question Preview (ID: 1839)
6th Grade Heredity And Genetics Quiz.
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A small section of DNA on a chromosome is known as a _________________.
a) gene
b) trait
c) allele
d) variation
A change in a gene or chromosome is known as a ________________.
a) trait
b) heredity
c) allele
d) mutation
What is the study of how traits are passed from parents to offspring?
a) genes
b) variation
c) genetics
d) heredity
Physical characteristics of an organism are __________.
a) alleles
b) traits
c) genes
d) recessive
The passing of traits from parents to offspring is called ________________.
a) mutation
b) heredity
c) alleles
d) genetics
Heredity material passes from parent to offspring during
a) chromosomes
b) reproduction
c) DNA
d) duplication of sperm
___________________ can be beneficial, harmful or neutral.
a) mitosis
b) meiosis
c) mutations
d) regeneration
How many recessive alleles must be present for a trait to be expressed?
a) 2
b) 1
c) 0
d) 4
The word mutate means?
a) to reproduce
b) to change
c) to harm
d) to clone
Human chromosomes are arranged in
a) 46 pairs
b) 23 pairs
c) 21 pairs
d) 43 pairs
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