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Grade 8 Science: Genetics — Inheritance Patterns & Biotechnology Awareness
Name
Date
1.
A ___ is a segment of DNA that codes for a trait or protein.
2.
Different versions of a gene are called ___.
3.
Humans have 46 ___ in most body cells.
4.
___ is the genetic makeup of an organism.
5.
___ is the observable trait expression.
6.
A ___ allele masks a recessive allele in heterozygotes.
7.
Two identical alleles (AA) are ___.
8.
Two different alleles (Aa) are ___.
9.
What is the difference between genotype and phenotype?
10.
Explain dominant and recessive alleles.
11.
What is a Punnett square used for?
12.
Why do siblings look different but share parents?
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