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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