Science 3rd Quarter
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| show | too small
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| Before a cell can proceed to mitosis from the gap 2 stage of the cycle, it must | show 🗑
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| show | Copies DNA
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| show | They undergo more wear and tear
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| show | Mitosis
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| show | Control the cell cycle
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| show | Growth factors
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| Which statement describes this chromosome | show 🗑
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| In a single celled organism, mitosis is used for | show 🗑
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| show | They can cause tumors in other parts of the body
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| show | Cancer cells divide uncontrollably
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| Which statement about the process of binary fission is true? | show 🗑
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| A plant's leaf consists of | show 🗑
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| show | Their location in the embryo
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| show | Starfish
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| show | Cell-tissue-organ-organ system
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| show | Group of organs that work together
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| Which of the following is a direct result of a normal cell's ability to express only certain genes? | show 🗑
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| show | Capacity to differentiate
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| Which type of stem cell can grow into any other cell type? | show 🗑
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| The most common form of reproduction among prokaryotes is | show 🗑
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| show | There is no DNA replication in binary fission
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| Which of the following statements is true of asexual reproduction? | show 🗑
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| Starfish that reproduce by splitting into pieces are reproducing by | show 🗑
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| show | Reproduction through binary fission
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| show | Mitosis
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| During the gap 1 stage of the new cell cycle, a cell | show 🗑
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| show | Division of the cytoplasm
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| show | They vary greatly within an organism
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| Which of the following limits the maximum size of a cell? | show 🗑
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| The processes of mitosis and cytokinesis produce two identical | show 🗑
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| show | Interphase
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| Which is the term for the group of proteins that organized and condenses long strands of DNA into tight coils? | show 🗑
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| During which phase of mitosis to sister chromatids seperate from each other? | show 🗑
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| Which of the following statements is true of cytokinesis? | show 🗑
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| show | growth factors
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| show | apoptosis
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| Two internal factors that are important in advancing the cell cycle are | show 🗑
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| show | Uncontrolled cell growth
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| Substances known to produce or promote cancer are called | show 🗑
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| Two similar chromosomes that you inherit from your parents are called | show 🗑
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| Meiosis produces cells with how many chromosomes? | show 🗑
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| show | Somatic cell
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| A distinguishing characteristic that can be inherited is a | show 🗑
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| show | monohybrid heterozygous-heterozygous cross
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| Which of the following statements is true of a homozygous alleles? | show 🗑
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| show | Law of segregation
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| Mendel knew that the variations in the offspring generations resulted from his experiments because he | show 🗑
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| Which pair of genes in figure 6.2 would be most likely to be inherited together? | show 🗑
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| show | Sister chromatids seperate
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| show | Masked by a dominant allele
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| show | Genetic variation within species.
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| show | crossing over
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| Mendel's observation that traits are inherited seperately was based on which set of experiments? | show 🗑
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| show | 3:1
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| show | somatic cell
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| show | 23
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| Which of the following best describe the genetic material a person recieves from his or her father? | show 🗑
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| show | Produces haploid genetics
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| show | Their nuclei fuse to form one nucleus
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| Which of the following statements is true of homologous chromosomes? | show 🗑
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| Which phrase best describes meiosis I? | show 🗑
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| show | They are divided
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| Gametogenesis is the term for | show 🗑
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| show | organelles
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| Which of the following is an example of a biological trait? | show 🗑
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| show | his crossings
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| When Mendel crossed plants that were purebred purple-flowered with plants that were purebred white-flowered, the resulting offspring all had purple flowers. When allowed to self-pollinate, this F1 generation gave rise to white-flowered plants as well as p | show 🗑
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| show | Inherited as dicrete units.
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| show | only had two forms.
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| Which phrase best describes the term genome? | show 🗑
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| Hair color and eye color are examples of a person's | show 🗑
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| show | heterozygous
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| If a pea plant were homozygous recessive for height, how would its alleles be represented? | show 🗑
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| show | expressed and the other allele is not
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| What do the letters inside the grid of a Punnet square represnet? | show 🗑
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| show | 1/2
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| The term for a cross that involves just one trait, such as pod shape, is called a | show 🗑
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| show | 3:1
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| Which of the following observations did Mendel make as a result of his experiments with dihybrid crosses? | show 🗑
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| show | 2^23x2^23
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| show | Pairs of homologous chromosomes exchange segments.
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| Suppose a gene that codes for flower color is linked with a gene that codes for leaf shape. Which statement is true of this pair of genes? | show 🗑
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| show | Prophase I of meiosis I
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| Which of the following is a result of the study of gene linkage? | show 🗑
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| show | Homozygous for a recessive allele
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| Gene expression is influenced by many factors. Which of the following is a factor in gene expression? | show 🗑
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| show | ss offspring
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| show | 75%
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| For an XX female to express a recessive sex-linked trait, she must have | show 🗑
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| show | polygenic trait
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| show | All white
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| A female is born with attached earlobes which is a recessive phenotype. Which of the following genotypes could her parents have? | show 🗑
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| show | Only females would be carriers
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| What is the main reason that sex-linked disorders are most often observed in males? | show 🗑
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| show | autosomal genes
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| Which of the following phrases is true of X chromosome inactivation? | show 🗑
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| A person who is heterozygous for a disorder caused by recessive alleles is a carrier of the disorder. A carrier is a person who | show 🗑
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| Genes that are located on sex chromosomes are called | show 🗑
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| Which statement is true of a sex-linked recessive gene? | show 🗑
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| Much of what we know about single-gene traits in humans is the result of studying | show 🗑
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| What is the main difference between the carrier of a sex-linked disorder and the carrier of an autosomal disorder? | show 🗑
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| show | pedigree
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| show | on the X chromosome
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| Which of the following types of genetic information can be identified easily with a karyotype? | show 🗑
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| Unlike the traits studied by Mendel, most traits are produced by genes with | show 🗑
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| A plant that is homozygous for red flowers is crossed with a plant that is homozygous for white flowers. In the case of incomplete dominance, the flowers of the offspring will be | show 🗑
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| In the case of codominant alleles, a plant that is homozygous for red flowers that is crossed with a plant that is homozygous for white flowers will produce flowers that are | show 🗑
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| Identical twins who are raised apart can have differences that last a lifetime. This is evidence that | show 🗑
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| Which scientist used chemical analysis to show that the genetic material in bacteria is DNA? | show 🗑
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| show | It demonstrated conclusively that the genetic material is not protein
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| The DNA double helix model used today is the product of research done by the scientists | show 🗑
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| show | base pairing rules
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| show | nucleus
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| What does the DNA polymerase do during replication? | show 🗑
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| show | The genetic code that, when translated, forms proteins
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| show | Once in every cell cycle
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| Crick's central dogma of molecular biology is essentially a summary of | show 🗑
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| show | 4
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| show | after transcription
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| show | introns
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| show | bacteria
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| show | replication
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| show | frameshift
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| What is the term for the nucleotide sequences that are removed during mRNA | show 🗑
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| show | transcription
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| show | Tells RNA polymerase where to start
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| What is the term for three-nucleotide sequence that codes for an amino acid? | show 🗑
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| How many amino acids are used to make up all of the proteins in the human body? | show 🗑
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| show | start codon
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| Which phrase best describes translation? | show 🗑
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| Which of the following is the site of translation? | show 🗑
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| show | DNA to RNA to proteins
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| show | CAUCAGU
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| show | Bring amino acids from the cytoplasm to the ribosomes
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| show | The DNA strand begins to unwind, seperating the two strands
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| A primary difference between transcription and replication is that transcription | show 🗑
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| show | replication
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| What are the main function of DNA polymerase? | show 🗑
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| Which of the following events occurs directly after a DNA molecule is unzipped? | show 🗑
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| The process of making new DNA molecules is semiconservative. This means that every new DNA molecule is composed of | show 🗑
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| When new DNA molecules are formed, almost all errors are detected and fixed by | show 🗑
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| show | nitrogen-containing bases
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| Erwin Chargaff concluded what about the four bases? | show 🗑
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| show | TGGCATA
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| Combining the work of other scientists with their own research, Watson and Crick discovered that two strands of DNA join together to form a | show 🗑
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| show | Hydrogen bonds.
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