Review adaptation, cell division and reproduction

The difference in inherited traits an organism has from others of the same species.

• adaptation

• variation

• dominance

• survival

Which statement about a zygote that forms by fertilization is correct?

• The zygote has half the full set of chromosomes from 1 parent.

• The zygote has 2 full sets of chromosomes, 1 set from each parent.

• The zygote has a full set of chromosomes, half from each parent.

• The zygote has half the full set of chromosomes, one-fourth from each parent.

If the body cell of an organism has 12 chromosomes, how many chromosomes will be in the sperm or egg of that organism?

• 2

• 6

• 12

• 24

Meiosis creates differences by having crossing over and random arrangement during which phase

• prophase I

• Anaphase 1

• Prophase ll

• cytokinesis

In body cells, most chromosomes are found in pairs that have the same structure and size.

• homologous chromosomes

• heterologous chromosomes

• haploid chromosomes

• tetraloid chromosomes

The process of meiosis produces 4 cells that are ...

• haploid

• diploid

• multicelled

• triloid

Why do cells need to duplicate their DNA?

• To expend energy

• to have an identical copy of DNA for each new nucleus

• To have laughter

• to create longer DNA strands

If an organism blends in with its background/environment, that is called...

• mimicry

• hibernation

• camoflauge

• migration

These are the organism’s body functions or parts that allow the organism to better survive and thus hopefully reproduce. Example: a bird's wing

• functional adaptation

• geophysical adaptation

• structural adaptation

• behavioral adaptation

Which of the following provides structural evidence for evolution?

• The embryos of two animals look similar a similar stages.

• A genetic analysis of two animals shows similar sequences of DNA.

• A fossil from the Cenozoic era shows an extinct animal similar to a modern animal.

• The comparison of similar bones on the legs of a human, a dog and a bat.