Understanding Heredity and Genetics: Key Concepts and Terminology
This chapter explores the fundamental concepts of heredity and genetics, focusing on the transmission of traits from parents to offspring, known as heredity. Key terms include alleles, genotype, phenotype, and Punnett squares, which illustrate genetic combinations. The chapter covers dominant and recessive alleles, heterozygous and homozygous traits, and the impact of polygenic inheritance. Additionally, it introduces concepts like genetic engineering and the historical significance of Gregor Mendel in the field of genetics.
Understanding Heredity and Genetics: Key Concepts and Terminology
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Presentation Transcript
Chapter 5 Review
The passing of traits from parents to offspring is called ______.
The different forms of a trait that a gene may have are called _____.
The study of how traits are inherited is the science of _____.
In a Punnet square, the letters stand for ______. • A. dominant alleles • B. recessive alleles • C. both a and b • D. neither a nor b
The way an organism looks and behaves as a result of its genetic makeup is called its _____.
In a Punnett square, a capital letter (T) stands for a _____ allele.
The combination Tt represents a _____ genotype. • A. heterozygous • B. homozygous • C. purebred • D. recessive
Experiments with four o’clock flowers produced examples of _____ dominance.
Blood type is an example of ______. • A. multiple alleles • B. a pair of genes • C. polygenic inheritance • D. sex-linked genes
Color blindness is an example of _____. • A. a sex-linked disorder • B. incomplete dominance • C. a genetic disorder • D. polygenic inheritance
Genetic engineering has already helped people by _____. • A. altering pedigrees • B. curing Down’s syndrome • C. eliminating infant deaths • D. producing medicine
Through recombinant DNA, scientist have been able to _____. • A. cure color blindness • B. create new breeds of dogs • C. alter viruses • D. improve tomatoes
Organisms that receive different alleles from each parent are called _____.
What term describes an organism with two alleles that are the same?
What term describes an organism with two different alleles for a trait?
What term describes a group of gene pairs acting together to produce a trait?
Errors occurring in the DNA when it is copied inside a cell are called _____.
The passing of traits from parents to offspring is called _____.
The different forms of a trait that a gene may have are called _____.
In a Punnett square, the letters stand for ______ and _____ alleles.
The way an organism looks and behaves as a result of its genetic makeup is called its _____.
Vocabulary • passing of traits from one generation to another