Term
| A student can study a karyotype to learn about the |
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Definition
| number and structure of the chromosomes in a somatic cell. |
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Term
| Which of the following shows the correct sequence of the cell cycle? |
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Definition
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Term
| In eukaryotes, the cell cycle is controlled by |
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Definition
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Term
| Normal cells become cancer cells when |
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Definition
All of the above ~
regulation of cell growth and division is lost.
cells do not respond normally to control mechanisms.
cells continue to divide without passing through G1. |
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Term
| Refer to the illustration 3, The cell in diagram 1 is in |
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Definition
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Term
| Refer to the illustration 3, Mitosis begins with the stage shown in diagram |
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Definition
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Term
| Refer to the illustration 3, The cell shown in diagram 5 is in |
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Definition
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Term
| Refer to the illustration4, Which of the following correctly indicates the order in which these events occur? |
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Definition
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Term
| Refer to the illustration 4, During which stage do the centromeres divide? |
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Definition
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Term
| Refer to the illustration 5. The process shown is |
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Definition
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Term
| When crossing-over takes place, chromosomes |
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Definition
| exchange corresponding segments of DNA. |
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Term
| Which of the following does not provide new genetic combinations? |
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Definition
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Term
| During cytokinesis in the female, what divides unequally? |
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Definition
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Term
| The more common name for an ovum is a(n) |
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Definition
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Term
| The process of producing offspring is called reproduction and can be |
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Definition
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Term
| Types of asexual reproduction include |
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Definition
All of the above ~
budding.
fragmentation.
fission. |
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Term
| Which of the following is not a type of sexual life cycle? |
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Definition
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Term
| The “father” of genetics was |
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Definition
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Term
| The phenotype of an organism |
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Definition
| is the physical appearance of a trait. |
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Term
| If an individual possesses two recessive alleles for the same trait, the individual is said to be |
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Definition
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Term
| Tallness (T) is dominant to shortness (t) in pea plants. Which of the following represents a genotype of a pea plant that is heterozygous for tallness? |
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Definition
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Term
| Refer to the illustration 6, The child represented in box 1 in the Punnett square would |
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Definition
| be homozygous for freckles |
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Term
| Refer to the illustration 6. The parents shown in the Punnett square could have children with a phenotype ratio of |
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Definition
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Term
| Refer to the illustration 6. Which box in the Punnett square represents a child who does not have freckles? |
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Definition
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Term
| Refer to the illustration 6. The child in box 3 of the Punnett square has the genotype |
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Definition
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Term
| All of the following are true about the structure of DNA except |
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Definition
| short strands of DNA are contained in chromosomes inside the nucleus of a cell. |
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Term
| Which of the following is not part of a molecule of DNA? |
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Definition
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Term
| The entire molecule shown in the illistration 7 is called a(n) |
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Definition
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Term
| The scientists credited with establishing the structure of DNA are |
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Definition
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Term
| During DNA replication, a complementary strand of DNA is made for each original DNA strand. Thus, if a portion of the original strand is CCTAGCT, then the new strand will be |
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Definition
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Term
| RNA differs from DNA in that RNA |
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Definition
All of the above ~
is single-stranded.
contains a different sugar molecule.
contains the nitrogen base uracil. |
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Term
| In RNA molecules, adenine is complementary to |
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Definition
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Term
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Definition
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Term
| Transcription is the process by which genetic information encoded in DNA is transferred to a(n) |
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Definition
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Term
| Each nucleotide triplet in mRNA that specifies a particular amino acid is called a(n) |
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Definition
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Term
| Refer to the illustration 8. What is the portion of the protein molecule coded for by the piece of mRNA given? |
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Definition
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Term
| Refer to the illustration 8. The anticodons for the codons in the mRNA given are |
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Definition
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Term
| Refer to the illustration 8. Which of the following would represent the strand of DNA from which the mRNA strand given was made? |
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Definition
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Term
| In order for translation to occur, mRNA must migrate to the |
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Definition
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Term
| Darwin thought that the plants and animals of the Galápagos Islands were similar to those of the nearby coast of South America because |
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Definition
| their ancestors had migrated from South America to the Galápagos Islands. |
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Term
| Natural selection is the process by which |
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Definition
| organisms with traits well suited to their environment survive and reproduce at a greater rate than less well-adapted organisms in the same environment. |
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Term
| The process by which a species becomes better suited to its environment is known as |
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Definition
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Term
| According to Darwin, evolution occurs |
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Definition
| because of natural selection |
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Term
| Organisms well suited to their environment |
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Definition
| reproduce at a greater rate than those less suited to the same environment. |
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Term
| Refer to the illustration 9. The fossils indicate that horse evolution probably has taken place |
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Definition
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Term
| Refer to the illustration 10. An analysis of DNA from these organisms would indicate that |
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Definition
| their nucleotide sequences show many similarities. |
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Term
| Refer to the illustration 10. The similarity of these structures suggests that the organisms |
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Definition
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Term
| Refer to the illustration 10. The bones labeled A are known as |
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Definition
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Term
| Evidence for evolution includes all of the following except |
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Definition
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Term
| Structures that have reduced in size because they no longer serve an important function are called |
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Definition
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Term
| The finches that Darwin studied differed in the shape of their beaks. According to Darwin, the finches probably |
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Definition
| all had a common ancestor |
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Term
| The part of the molecule for which deoxyribonucleic acid is named is the |
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Definition
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Term
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Definition
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Term
| Each of the following is a type of RNA except |
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Definition
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