UNIT 2- CHAPTER 11: INTRODUCTION TO GENETICS. – BIOLOGY. Quality content you can rely on!

UNIT 2- CHAPTER 11: INTRODUCTION TO GENETICS.
– BIOLOGY.
Quality content you can rely on!
Allele - Answer: One of a number of different forms of a gene


Codominance - Answer: Situation in which the phenotypes produced by both alleles are
completely expressed


Crossing-Over - Answer: Process in which homologous chromosomes exchange
portions of their chromatids during meiosis


Diploid - Answer: Term used to refer to a cell that contains two sets of homologous
chromosomes


Fertilization - Answer: Process in sexual reproduction in which male and female
reproductive cells join to form a new cell


Gamete - Answer: Sex cell


Gene - Answer: Sequence of DNA that codes for a protein and thus determines a trait;
factor that is passed from parent to offspring


Genetics - Answer: Scientific study of heredity


Genotype - Answer: Genetic makeup of an organism


Haploid - Answer: Term used to refer to a cell that contains only a single set of genes


Heterozygous - Answer: Having two different alleles for a particular gene



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