Exam 17: Cell Reproduction and Differentiation

The primary transcript that results from transcription must be modified before it can be translated; nucleotide sequences that actually form the mRNA and contain the genetic information are called ________.

DNA is organized and arranged in the nucleus as

Match each stage of mitosis (lettered A-D) to the appropriate diagram in the figure above. -metaphase

Cloning of human cells for the purpose of treating a patient is referred to as

Embryo splitting is a type of cloning in which an egg is fertilized in vitro and

Human chromosomes are made up of DNA and proteins called ________, which help organize the DNA and give structure to the chromosomes.

Fertilization of an egg in vitro, leading to separation of individual cells from the 8-cell stage for implantation into a surrogate mother is called ________.

Most nonlethal mutations in somatic cells are passed along to the next generation.

Determine whether each of the following events is characteristic of mitosis, meiosis, or both. Answers may be used more than once. A) mitosis B) meiosis C) mitosis and meiosis 13) preceded by replication of chromosomes during interphase 14) results in production of four genetically different daughter cells 15) yields haploid daughter cells 16) involves pairing of homologous chromosomes and crossing-over 17) involves chromosome movement and distribution to daughter cells 18) results in the production of gametes 19) involves two successive nuclear and cell divisions 20) results in the production of two genetically identical daughter cells

During which one of the following phases of the cell cycle does the nucleus divide?

Match each stage of mitosis (lettered A-D) to the appropriate diagram in the figure above. -prophase

A short segment of DNA that contains the code or blueprint for one or more proteins is called a gene.

The specialization of stem cells into various cellular types is called ________.

The result of mitosis is the production of two daughter cells that are genetically identical to each other but not to the parent cell.

Cloning for the specific purpose of treating human disease is referred to as ________ cloning.

How many codons are in the following sequence of nucleotides: AAAUGCUCGUAA?

The replication of DNA occurs during the ________ phase of interphase.

The most important checkpoint in the regulation of cell reproduction is during the ________ phase of interphase.