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Hd Chapter 2 review
Quiz by Denise Dewsnup
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22 questions
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- Q1The single cell that is formed from the fusing of two gametes, a sperm and an ovum.zygote (p. 048)30s
- Q2DNA is stored on?chromosome (p. 048)30s
- Q3A small section of a chromosome; the basic unit for the transmission of heredity. A gene consists of a string of chemicals that provide instructions for the cell to manufacture certain proteins.gene (p. 048)30s
- Q4A reproductive cell; that is, a sperm or an ovum that can produce a new individual if it combines with a gamete from the other sex to form a zygote.gamete (p. 048)30s
- Q5Any of the possible forms of a gene. Genes with various alleles are called polymorphic.allele (p. 048)30s
- Q6An organism's entire genetic inheritance, or genetic potential.genotype (p. 049)30s
- Q7The observable characteristics of a person, including appearance, personality, intelligence, and all other apparent traits.phenotype (p. 050)30s
- Q8The full set of genes for a certain species.genome (p. 050)30s
- Q9The interaction of a pair of genes in such a way that the phenotype reveals the influence of one (the dominant gene) more than that of the other (the recessive gene).dominant-recessive pattern (p. 056)30s
- Q10A person whose genotype includes a gene that is not expressed in the phenotype. Such an unexpressed gene occurs in half the carrier's gametes and thus is passed on to half the carrier's children.carrier (p. 056)30s
- Q11A gene carried on the X chromosome. If a male inherits an X-linked recessive trait from his mother, he expresses that trait because the Y from his father has no counteracting gene. Females are more likely to be carriers of X-linked traits but are less likely to express them.X-linked (p. 056)30s
- Q12The first two weeks of development after conception, characterized by rapid cell division and the beginning of cell differentiatiogerminal period (p. 058)30s
- Q13The stage of prenatal development from the end of the second week through the eighth week after conception, during which the basic forms of body structures, including internal organs but not sex organs, develop.embryonic period (p. 058)30s
- Q14The stage of prenatal development from nine weeks after conception until birth, during which the fetus grows in size and matures in functioning.fetal period (p. 058)30s
- Q15The name for a developing human organism from two to eight weeks after conception.embryo (p. 059)30s