Review Overview of cell_division_reproduction_and_development

The following statement is true of both mitosis and meiosis: _____________ occurs before the division of the nucleus.

DNA replication

____ is a type of cell division/cell process occurs only in organisms that reproduce sexually.

Meiosis

The diagram below represents a technique used to produce carrots. _________ is the type of cell division/ reproductive process that determines the traits present in the cluster of cells.

Mitosis

A student used a microscope to observe a single-celled organism. As he watched, it looked as if the organism split into two cells. He made drawings, shown below, of the organism over a short period of time. The student recorded the following process with his drawings __________________.

asexual reproduction.

Strawberries can reproduce by means of runners, which are stems that grow horizontally along the ground. At the region of the runner that touches the ground, a new plant develops. The reason why is the new plant genetically identical to the parent is that it was produced _________.

asexually.

Each of the cells present in a woman contains a complete set of chromosomes. The only exceptions are her____which are also known as the female____

egg cells, gamete.

Meiosis and fertilization are important for the survival of many species because these two processes result in____

genetic variability of offspring.

Potato farmers in Ireland during the mid 1800s all grew the same type of potato. The potato plants were all produced as clones of one another. When a fungus infected the crop, all of the potatoes were destroyed. This occurred because these potato plants had little ______________.

genetic variability.

The following statement correctly describes the genetic makeup of the sperm cells produced by a human male: Each sperm cell has____the normal number of chromosomes and the cells are usually genetically____(select from: different or identical).

half, different

Reproduction in humans usually requires gametes with chromosomes that are not paired. The chromosome number is half of the usual body cell chromosome number for that species. This is also known as the _____________________ chromosome number.

haploid/monoploid (1N)

The bud shown in the diagram below was produced by asexual reproduction. The following cell division/process is responsible for the formation of the bud:__________.

mitosis

The following process/cell division allows a mammal to continue to grow in size: ______ of ________cells.

mitosis, body

Sheets of skin are grown in a culture in order to replace the skin of victims with severe burns or frostbite. Undamaged skin cells are obtained from the victim, put in a Petri dish with the proper growth materials, and incubated as represented in the diagram below. These new skin cells form as a result of __________________.

mitotic cell division.

In an environment that undergoes frequent change, species that reproduce sexually may have an advantage over species that reproduce asexually because the sexually reproducing species produce ___________________________.

offspring with more variety.

The process of meiotic division in human females is represented below. This process normally produces____functional gamete with_______of the genetic information found in the diploid germ cell.

one, one-half

When an organism reproduces asexually, it usually has _________ parent, and the ________ chromosome number as the parent.

one, same

Sexual reproduction in a species usually results in ___________________. This can lead to genetic variation.

recombination of genes

A plant commonly referred to as "Mother of Thousands" has lost its ability to produce seeds. In order to reproduce, the edges of the plant's leaves asexually develop miniature plants that drop off and grow into mature plants. The cells of the offspring would have___________ genetic information, when compared to cells of the parent plant. (select same or half)

same

Spider plants can reproduce both sexually and asexually. The diagram below represents a spider plant reproducing asexually by a method known as vegetative propagation. The cells of the offspring have the ______ genetic content as the cells of the parent.

same

The following type of cell is normally produced as a direct result of meiosis: A gamete (such as ________ or egg) having ______ the normal species number of chromosomes.

sperm, half