Reproduction Practice

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

• more offspring in each generation

• offspring with more variety

• new species of offspring in each generation

• identical offspring

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NGSS.HS-LS4-2

NGSS.HS-LS4-4

Which statement correctly describes the offspring?

• They vary genetically from the parent.

• They are produced by the union of gametes (with egg and sperm)

• They obtain nourishment from a placenta.

• They result without the union of gametes (without egg and sperm)

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which cell is normally produced as a direct result of meiosis?

• a uterine cell having half the normal species number of chromosomes

• an egg having the full species number of chromosomes

• a zygote having the full species number of chromosomes

• a sperm having half the normal species number of chromosomes

Which statement describes the outcome of this process?

• The bud will develop into a zygote.

• The two cells that result will each contain half the species number of chromosomes.

• The two cells that result will have identical DNA.

• The bud will start to divide by the process of meiotic cell division.

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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NGSS.HS-LS1-4

This entire sequence (A through embryo) started with

• the periodic shedding of a thickened uterine lining

• mitotic cell division in a testis

• meiotic cell division in the placenta

• the process of fertilization

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NGSS.HS-LS1-4

Tissues (groups of multiple cells) develop from a zygote by

• meiosis

• fertilization

• mitosis

• mitosis and differentiation

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NGSS.HS-LS1-4

For a human zygote to become an embryo, it must undergo

• fertilization

• recombination

• meiotic divisions

• mitotic divisions

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NGSS.HS-LS1-4

Which statement describing this diagram is correct?

• The cell represented by structure 3 has the same genetic content as structure 2.

• Process A represents the process of meiosis.

• Each cell in structure 4 has the same genetic content as that in structure 3.

• Processes A and B both occur in the placenta.

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NGSS.HS-LS3-2

Two cellular events that normally occur during two processes are represented below.

• 1

• 2

• 3

• 4