Exam 3: Seciton 3: Beginnings: Heredity and Environment

The process of methylation can do all of the following to genetic instructions EXCEPT _____.

Holly learned from her science teacher that her height resulted from about 180 genes, each contributing a tiny amount of genetic information. Holly learned that her height was due to _____.

Upon the completion of the Human Genome Project several surprise findings were made, which include all of the following EXCEPT _____.

Knowing that nature and nurture affect every human trait and disorder means all of the following EXCEPT _____.

_____ refers to a gene carried on the X chromosome.

Research indicates that alcoholism is caused by _____.

An individual with an extra chromosome on the 21st pair of chromosomes has _____.

The single cell formed from the union of two gametes, a sperm and ovum, is called a _____.

One in every _____ infants is born with only one sex chromosome or with three or more, which creates a chromosomal abnormality.

Which of the following is an example of a single-gene disorder that is dominant?

_____ 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.

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

Genes with various repeats or deletions of base pairs are referred to as _____.

In 22 of the 23 pairs of chromosomes, both members of the pair are closely matched. Each of these 44 chromosomes is called a(n) _____.

Within hours after conception, the first 23 pairs of chromosomes within the zygote _____, forming two complete sets of the genome.

Which woman is more likely to experience a successful in vitro fertilization (IVF) pregnancy?

Each molecule of deoxyribonucleic acid (DNA) is stored on a(n) _____.

The general term for the techniques designed to help infertile couples conceive and then sustain a pregnancy is _____.

The most common extra-chromosome condition is _____.

Each gene directs the formation of specific proteins made from a string of _____ amino acids.