unit 4 - cell division and reproduction - test #4 quizlet

If an animal produces many young asexually, and if they remain attached to the original animal, the resulting mass of animals is termed a v.

colony

The pine cone seed is the:

container for the fertilized egg

Variations of traits within a population are the result of genetic recombination of v genes.

pre-existing

For an animal living a diplontic cycle, meiosis is limited to:

producing gametes

Angiosperms produce their gametes in flowers.

True

External fertilization is not an efficient method of reproduction.

True

Pollination of a flower requires that the pollen produced in the v be deposited on the v.

anther, stigma

Mitosis is also referred to as:

asexual reproduction

Genetic recombination results from:

new combinations of genes from two parents

The phase during mitosis when chromosomes move into the center of the cell is:

metaphase

Asexual reproduction is based on a type of cell division known as v.

mitosis

The stage of mitosis when the chromatin shortens and thickens to form distinct chromosomes is:

prophase

v is the division of a parent cell into a number of daughter cells all at once.

Multiple fission

During prophase, each chromosome in the pair is attached to the other by the v.

centromere

An advantage of grafting is to increase the quality of the rootstock.

False

Differentiation of cells changes the nucleic information.

False

The genetic material appearing like a thread in the nucleus is called v.

chromatin

The production of cells during mitosis into specialized function is called v.

differentiation

Variation produced by sexual reproduction starts:

during meiosis

When are the duplicated homologous pairs of chromosomes separated?

during the second division of meiosis

(Select all that apply.) Fertilization occurs when the of gametes combine.

genes, DNA, chromosomes

A fertilized egg receives one set of v chromosomes from the sperm.

haplold

An animal with a haplontic life cycle reproduces by:

isogamous fertilization

The condition common to protozoa whereby the cell of the organism acts as a gamete is v.

isogamy

Four principal advantages of asexual reproduction are:

reproduction at a rapid rate, reproduction in harsh climates, reproduction with only one parent, reproduction of genetically identical offspring

The part of a desired plant inserted into rootstock during grafting is called the v.

scion

The pistil of a flower consists of:

style, ovary, stigma

A fleshy, enlarged end of rhizome or stolon is called a v.

tuber

Large variations in a crop may be developed by employing asexual reproduction.

False

The petals of a flower have no reproductive function.

False

Some plants and animals can reproduce both asexually and sexually.

True

The human gametes are:

oogamous