Genetics: Question Preview (ID: 1839)

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Human chromosomes are arranged in
a) 46 pairs
b) 23 pairs
c) 21 pairs
d) 43 pairs

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

___________________ can be beneficial, harmful or neutral.
a) mitosis
b) meiosis
c) mutations
d) regeneration

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

What is the study of how traits are passed from parents to offspring?
a) genes
b) variation
c) genetics
d) heredity

A change in a gene or chromosome is known as a ________________.
a) trait
b) heredity
c) allele
d) mutation

A small section of DNA on a chromosome is known as a _________________.
a) gene
b) trait
c) allele
d) variation

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