A&P CHAPTER 27: HEREDITY

Question 1

GENES

Answer 1

INDIVIDUAL SEGMENTS OF DNA

Question 2

AUTOSOMES

Answer 2

CHROMOSOME PAIRS 1-22
DO NOT CARRY SEX GENES
GUIDE EXPRESSION OF MOST OTHER TRAITS

Question 3

SEX CHROMOSOMES

Answer 3

X AND Y - DETERMINE SEX
FEMALE: XX
MALE: XY

Question 4

ALLELE

Answer 4

SLIGHTLY DIFFERENT GENE COPIES IN A DNA SEQUENCE

Question 5

HOMOZYGOUS VS HETEROZYGOUS

Answer 5

HOMO: TWO IDENTICAL ALLELES OF A GENE
HETERO: TWO DIFFERENT ALLELES (WONT BE EXPRESSED)

Question 6

PHENOTYPE

Answer 6

COMPLETE OBSERVABLE CHARACTERISTICS OF ORGANISM

Question 7

WHAT IS A PUNNETT SQUARE USED FOR

Answer 7

DIAGRAMING POSSIBLE GENE COMBINATIONS IN A SINGLE TRAIT

Question 8

FEW DISORDERS ARE CAUSED BY DOMINANT GENES BECAUSE

Answer 8

LETHAL DOMINANT GENES USUALLY CAUSE THE DEATH OF AN EMBRYO

Question 9

AUTOSOMAL RECESSIVE INHERITANCE

Answer 9

TWO RECESSIVE ALLELES (ONE FROM EACH PARENT) TRANSMIT A TRAIT

Question 10

INCOMPLETE DOMINANCE

Answer 10

HETEROZYGOTE HAS PHENOTYPE INTERMEDIATE OF HOMOZYGOUS DOMINANT AND HOMZYGOUS RECESSIVE

Question 11

HUMAN PHENOTYPE IS ____ WHILE GENOTYPE IS NOT

Answer 11

EASILY CHANGED

Question 12

PHENOCOPIES

Answer 12

ENVIRONMENTAL PRODUCED PHENOTYPES THAT MIMIC GENETIC MUTATIONS