CoL 4 - Reproduction Review

The direct result of fertilization is represented at

• A
• B
• C
• D

The number in each circle below represents the chromosome number of the cell. Which diagram represents the production of offspring by an asexually reproducing organism?

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• 4

The arrows in the diagram below indicate the development of four different varieties of vegetable plants from wild mustard. Each of these varieties was most likely produced as a result of

• (1)  asexual reproduction in the wild for many years 
• (2)  changes in light availability 
• (3)  competition between plants
• (4)  selective breeding over many generations

Ancestors of the giant panda had rounded paws with five very short toes. Today, the giant panda has a sixth toe, often referred to as a thumb, even though it develops from a wrist bone. This unique thumb is an adaptation that allows the panda to easily hold and eat bamboo shoots. The presence of the giant panda’s thumb is most likely the result of

• (1)  natural selection
• (2)  selective breeding
• (3)  asexual reproduction
• (4)  ecological succession

The diagram below represents the banding pattern for human chromosome 11, with some of the bands labeled. The bands represent

• Proteins
• Genes
• Starches
• Enzymes

Which statement concerning the reproductive cells in the diagram below is correct?

• (1)  The cells are produced by mitosis and contain all the genetic information of the father.
• (2)  If one of these cells fertilizes an egg, the offspring will be identical to the father.
• (3)  Each of these cells contains only half the genetic information necessary for the formation of an offspring.
• (4)  An egg fertilized by one of these cells will develop into a female with the same characteristics as the mother.

The diagrams below illustrate types of asexual reproduction. Which statement correctly describes the offspring?

• (1)  They vary genetically from the parent. 
• (2)  They are produced by the union of gametes. 
• (3)  They obtain nourishment from a placenta.
• (4)  They result without the union of gametes.

"Dolly" is a sheep developed from an egg cell of her mother that had its nucleus replaced by a nucleus from a body cell of her mother. As a result of this technique, Dolly is

• no longer able to reproduce
• able to have a longer lifespan
• genetically identical to her mother
• unable to mate

The members of a certain species of grass in a lawn are genetically identical. The best explanation for this observation is that the species most probably reproduces

• by an asexual method
• after pollination by a particular species of bee
• after pollination by the wind
• by identical sperm fertilizing the eggs

Which diagram best shows the process of binary fission in an amoeba?

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