Genes are carried on ______.

A duplicated chromosome consists of two ______.

At the end of meiosis, there are _______ cells.

How many autosomes do humans have?

Amanda's parents realized that her body was not developing properly about the time she was 12 years old. She was shorter than most of her friends and was not going through changes normally associated with female puberty. They took her to a doctor who initially diagnosed Amanda with Turner Syndrome because of her physical features. He ordered a karyotype that confirmed his diagnosis. Amanda was born with only one X chromosome. Although there is no specific cure, the doctor was able to treat her and correct some of the problems associated with the condition. For example, she received growth hormone to improve her growth and estrogen to help her develop the physical changes of puberty. In relation to sex chromosomes, Amanda would be designated as ______.

At the end of meiosis, the resulting cells are

Sister chromatids are joined at the ______.

How many chromosomes can a gamete possess as a result of nondisjunction?

Chromosomes that are not sex chromosomes are called ______.

All the offspring of a cross between a red-flowered plant and a white-flowered plant have pink flowers. This means that the allele for red flowers is ______ to the allele for white flowers.

What is the genotype of an individual who is heterozygous for dimples?

A color-blind woman mates with a man who is not color-blind. All of the sons and none of the daughters are color-blind. What is the best explanation of this result?

An individual heterozygous for cystic fibrosis ______.

What is the key to the recognition of codominance?

Hypophosphatemia (vitamin D-resistant rickets) is inherited as an X-linked dominant. What is the expected outcome of a cross between a homozygous recessive woman and a man with hypophosphatemia?

The nucleotide unit of a DNA molecule has three components: a phosphate group, a sugar, and which of the following?

The manipulation of organisms' genetic material by adding, deleting, or transplanting genes from one organism to another is known as:

If you were to compare a single gene to a cookbook, it would be analogous to:

Jennifer is concerned about developing breast cancer and decides to do a screening for BRCA1 and BRCA2 mutations. Which of the following conclusions could be drawn from the results of her screening?

DNA and RNA are polymers composed of ______ monomers.

A group of scientists are attempting to remove a gene from bacterial cells that confers resistance to the common antibiotic, penicillin. Which tool would be the most precise and efficient for this task?

Which of the following is characteristic of a DNA double helix?

Chromosomes are duplicated before mitosis and meiosis.

Mitosis is always followed by meiosis

The chances that any two siblings will be genetically identical is astronomically small.

A given gene can have only two alleles

Protein synthesis occurs in the Golgi body.

Proteins are produced directly from DNA, with no intermediate steps.