Question 1

A person's collection of genes is referred to as his or her _____.

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Question 2

If the 23rd pair of chromosomes is _____, the individual will be female.

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Question 3

Monozygotic twins have _____ percent of their genes in common.

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Question 4

Genes that have various alleles are called _____.

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Question 5

The entire packet of instructions that make a living organism is called the _____.

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Question 6

An individual's appearance, behavior, personality, intelligence, and all other traits is their _____.

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Question 7

Brandon and Brianna are fraternal twins. They are the result of _____.

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Question 8

Fraternal twins are also called _____ twins.

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Question 9

Grace learned in her high school science class that a male has _____ on the 23rd pair of chromosomes.

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Question 10

Katie rushed into the house after school and announced to her parents, "So many genes make me who I am, which means my personality is _____!"

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Question 11

_____ refers to a trait that is affected by many factors, both genetic and environmental, that enhance, halt, shape, or alter the expression of genes, resulting in a phenotype that may differ markedly from the genotype.

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Question 12

Jenny and Tina are identical twins. They are the result of _____.

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Question 13

If the 23rd pair of chromosomes is _____, the individual will be male.

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Question 14

Jenny learned in her high school science class that a female has _____ on the 23rd pair of chromosomes.

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Question 15

The first 22 chromosomes contain hundreds of genes in the same positions and sequence. If the code of the gene from one parent is exactly like the code on the same gene from the other parent, the gene pair is _____.

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Question 16

Michelle and Greg are having a baby and are hoping for a boy. _____ is responsible for determining the sex of the baby.

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Question 17

Small variations, mutations, or repetitions in DNA code in the base pairs or triplets that could make a notable difference in the proteins and thus, eventually, in the person are called _____.

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Question 18

The first 22 chromosomes contain hundreds of genes in the same positions and sequence. If the code of the gene from one parent differs from the code on the same gene from the other parent, the gene pair is _____.

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