Exam 8: Cellular Reproduction: Cells From Cells

Scenario 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. The doctor 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. -Amanda's abnormal number of sex chromosomes resulted from ________.

During anaphase I ________.

-The above figure shows that ________.

Which activity will help prevent cancer and increase survival?

Nondisjunction might result in gametes with the chromosome numbers ________.

The structure where sister chromatids are joined is called the ________.

During telophase, ________.

Genetic variation is accomplished by all but one of the following. Choose the EXCEPTION.

When in mitosis are there twice as many chromatids compared to the original cell's chromosomes?

Upon completion of telophase I and cytokinesis in meiosis, there is(are)________ cell(s).

What happens during interphase?

If the cleavage furrow or cell plate shown in the figure formed nearer one pole of the dividing cell rather than at the midline, what would be the predicted result?

Cytokinesis typically begins during the ________ stage of mitosis.

The cells that result from the mitotic cell cycle can be described as ________.

What is the chromosome number found in humans cells if meiosis I is completed normally?

A(n)________ is an example of an organism that can sometimes reproduce asexually by parthenogenesis.

Scenario 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. The doctor 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. -What percentage of Amanda's gametes would likely have the normal number of chromosomes?

Which characteristic seen in prophase I does NOT occur in prophase II?

What is the chromosome composition of a normal human male?

Consider an organism that usually reproduces sexually. If it produces haploid offspring through the development of unfertilized eggs, what would be the genetic similarity of those offspring to one another?