Bio 182 Exam 1 Vocabulary Questions With All
Correct Answers Updated
1. trait a characteristic of an organism that varies genetically
2. phenotype a description of an organism's appearance or behavior
3. mutation an error in the sequence of nucleotides when copying DNA
4. allele a form of a gene that attects the way an organism looks or
behaves
5. genotype the set of alleles that determine how an organism looks or
behaves
6. locus a place on a chromosome where a certain gene occurs
7. gene a linear sequences of DNA that codes for a certain protein
8. meiosis a process in which a diploid cell produces four haploid cells
9. mitosis a process in which a diploid cell produces two diploid cells
10. chromosome a highly condensed molecule of DNA thatches for many proteins
11. gamete a haploid cell that develops into a sperm or an egg
12. zygote the diploid cell that results from fertilization between sperm and
egg
13. dominant when one copy of an allele determines the phenotype of an
individual
14. recessive when two copies of an allele are needed to express a certain
phenotype
15. heterozygous when an individual carries two ditterent alleles for a gene
16. homozygous when an individual carries two identical alleles for a gene
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Correct Answers Updated
1. trait a characteristic of an organism that varies genetically
2. phenotype a description of an organism's appearance or behavior
3. mutation an error in the sequence of nucleotides when copying DNA
4. allele a form of a gene that attects the way an organism looks or
behaves
5. genotype the set of alleles that determine how an organism looks or
behaves
6. locus a place on a chromosome where a certain gene occurs
7. gene a linear sequences of DNA that codes for a certain protein
8. meiosis a process in which a diploid cell produces four haploid cells
9. mitosis a process in which a diploid cell produces two diploid cells
10. chromosome a highly condensed molecule of DNA thatches for many proteins
11. gamete a haploid cell that develops into a sperm or an egg
12. zygote the diploid cell that results from fertilization between sperm and
egg
13. dominant when one copy of an allele determines the phenotype of an
individual
14. recessive when two copies of an allele are needed to express a certain
phenotype
15. heterozygous when an individual carries two ditterent alleles for a gene
16. homozygous when an individual carries two identical alleles for a gene
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3
