Biology - Quiz 2: "Asexual Reproduction"

T of F? A common fruit that can only reproduce asexually is Thompson seedless grapes.

True

T or F? Asexual reproduction always yields offspring which are identical to their parent.

True

T or F? Grafting is an ancient practice.

True

T or F? If you develop a particular flower which cannot be reproduced from seeds, it could be preserved by grafting.

True

T or F? Nearly all plants can be reproduced asexually.

True

T or F? Occasionally asexual reproduction can cause undesirable proliferation of an organism.

True

A kind of asexual reproduction involving the growth of a new individual from part of an older organism:

budding

A technique which involves reducing the scion to a singular bud in grafting:

budding

A plant structure with enlarged leaf bases and stored food surrounding a central bit of fleshy stem tissue:

bulb

A spore that develops by mitosis:

mitospore

T or F? A successful scion will produce the product of the rootstock with greater quality.

False

T or F? An advantage of grafting is to increase the quality of the rootstock.

False

T or F? Asexual reproduction requires gametes but not fertilization.

False

T or F? Colonies occur when an animal produces many young asexually and they become detached from the original (parent) animal and result as an independent mass.

False

T or F? Egg-laying is a basic type of asexual reproduction in lower organisms.

False

T or F? Large variations in crop may be developed by employing asexual reproduction

False

T or F? The new plant produced by the technique of layering must remain attached to the stem of the original plant.

False

Grafting is a concept spoken about in the Bible in the book of:

Romans

T or F? Offspring which arise as a contiguous outgrowth of the parent is called budding

True

Refers to the appearance of buds or roots from tissue which is not bud or root tissue:

adventitious

A phenomenon in which a one-celled organism divides by mitosis into two organisms

binary fission

The simplest form of asexual reproduction is called _____ .

binary fission

The central portion of a starfish. The arms of a starfish radiate from the central disk:

central disk

A group of organisms attached to one another after undergoing asexual reproduction from a common parent:

colony

A special kind of asexual spore found in many kinds of fungi:

conidia

A short, solid, enlarged underground stem used for food storage and for asexual reproduction:

corm

A technique in which a part of the stem or a bud is inserted into a plant with a good root system:

grafting

The technique of developing roots on a stem of a plant while that stem is still attached to the parent plant:

layering

A technique in horticulture using a cutting made from a leaf or leaf tissue to grow a new plant:

leaf cutting

A type of cell division used in asexual reproduction:

mitosis

A cell undergoes many mitotic divisions in the nucleus and a number of daughter cells are produced all at once:

multiple fission

The process of a parent cell dividing into a large number of genetically identical cells all at once is known as _____ .

multiple fission

The act of propagating or establishing and growing new plants:

propagation

A one- or few-celled organism with chromosomes:

protist

Organisms break into two or more parts and then each part grows into a new individual:

regeneration

When an organism of many cells breaks up into two or more parts, and when these parts survive to produce a new organism, reproduction occurs by:

regeneration

Four principal advantages of asexual reproduction are:

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

A stem at or just beneath the surface of the ground which can give rise to aerial stems or roots:

rhizome

A successful cutting requires that the new plant acquire its own:

root

A cutting made from the root of a plant which develops adventitious buds and grows into a new plant:

root cutting

The portion of a plant with the root system used in grafting:

root stock

The portion of a plant with buds, that is placed into the stock by grafting or budding:

scion

A small, resistant cell that can grow into a new organism. They may be produced either by meiosis or mitosis:

spore

The portion of the vascular plant which has the majority of the methods of asexual reproduction occurring in it is called the:

stem

A cutting of stem tissue used to grow a new plant:

stem cutting

Cuttings used for growing plants may be taken from:

stems, leaves, roots

A stem which grows out periodically producing new stems and leaves on one side, and roots on the other:

stolon

A fleshy, enlarged stem of a rhizome or stolon. It has buds and can grow new plants;

tuber

one-celled:

unicellular

Has true conductive tissues within it. It usually has true roots, stems, and leaves:

vascular plant

The act of propagating or establishing and growing new plants:

vegetative propagation