Biology 1408 Lecture Exam 3 with all Correct & 100%
Verified Answers |Latest Version |Already Graded A+
Genetics ✔Correct Answer-The study of heredity and chromosomal basis of inheritance
Genes ✔Correct Answer-Segments of DNA carrying instructions for making proteins
Inheritance ✔Correct Answer-Genetic transmission of characteristics from parents to
offspring
Gregor Mendel ✔Correct Answer-Monk; father of genetics; 1866
Self fertilization ✔Correct Answer-Male part of a plant fertilizes female part of same plant;
cross to the same genotype
Cross fertilization ✔Correct Answer-Fertilization of one plant by a second plant; cross to
different genotype
Allele ✔Correct Answer-Alternative version of a gene
Homozygous ✔Correct Answer-Same alleles; PP or pp
Heterozygous ✔Correct Answer-Different alleles; Pp
Phenotype ✔Correct Answer-What you see
Genotype ✔Correct Answer-Combinations of alleles on the chromosome; genetic part; Pp
Recessive ✔Correct Answer-The trait that is masked; has to be two little letters; example: pp
Dominant ✔Correct Answer-The trait that does the masking; has to have at least one big
letter; examples: Pp or PP
P1 ✔Correct Answer-Parental generation
F1 ✔Correct Answer-First filial generation; children
F2 ✔Correct Answer-Second filial generation; grandchildren
Monohybrid cross ✔Correct Answer-Involves one set of traits; purple/ white flowers; two
alleles total
, dihybrid cross ✔Correct Answer-Involves two sets of traits; purple/ white flowers and
short/tall height; four alleles total
True breeding ✔Correct Answer-When self fertilized, the offspring are of the same variety;
homozygous for a trait; homozygous genotype
Gametes ✔Correct Answer-Mature haploid sex cell; sperm, egg, pollen pistol
Punnett Square ✔Correct Answer-Box diagram to figure out probabilities
Test cross ✔Correct Answer-Cross a dominant to a recessive to see if the dominant is
homozygous or heterozygous
Sex linked ✔Correct Answer-Gene on the X chromosome; hemophilia, red/green color
blindness, muscular dystrophy
Hemophilia ✔Correct Answer-Missing one or more clotting factors, blood doesn't clot; X
linked
Sex linked genes ✔Correct Answer-You have to keep track of the dominant and recessive
alleles, but you also have to keep track of the X and Y chromosomes
red/green color blindness ✔Correct Answer-Missing red cones; can't distinguish red colors
from green colors; X linked
Duchenne muscular dystrophy ✔Correct Answer-Missing muscle protein, leads to muscle
degeneration; X linked
Sex limited ✔Correct Answer-Expressed in only one sex; testicular or ovarian cancer
Sex influenced ✔Correct Answer-Gene expression determined by sex; horns on cattle
Genomic imprinting ✔Correct Answer-Some genes behave differently depending on whether
they are inherited from mom or from dad; fragile X syndrome is worse when inherited from
mom; Huntington's is worse if inherited from dad
Fragile X syndrome ✔Correct Answer-Symptoms include mental retardation and enlarged
body parts; forehead, ears, jaw, testicles in males; incomplete dominance
Huntington's disease ✔Correct Answer-Nervous system degenerates; Symptoms include
degeneration of brain cells, uncontrolled muscle movements, abnormal body postures;
dominant gene
Verified Answers |Latest Version |Already Graded A+
Genetics ✔Correct Answer-The study of heredity and chromosomal basis of inheritance
Genes ✔Correct Answer-Segments of DNA carrying instructions for making proteins
Inheritance ✔Correct Answer-Genetic transmission of characteristics from parents to
offspring
Gregor Mendel ✔Correct Answer-Monk; father of genetics; 1866
Self fertilization ✔Correct Answer-Male part of a plant fertilizes female part of same plant;
cross to the same genotype
Cross fertilization ✔Correct Answer-Fertilization of one plant by a second plant; cross to
different genotype
Allele ✔Correct Answer-Alternative version of a gene
Homozygous ✔Correct Answer-Same alleles; PP or pp
Heterozygous ✔Correct Answer-Different alleles; Pp
Phenotype ✔Correct Answer-What you see
Genotype ✔Correct Answer-Combinations of alleles on the chromosome; genetic part; Pp
Recessive ✔Correct Answer-The trait that is masked; has to be two little letters; example: pp
Dominant ✔Correct Answer-The trait that does the masking; has to have at least one big
letter; examples: Pp or PP
P1 ✔Correct Answer-Parental generation
F1 ✔Correct Answer-First filial generation; children
F2 ✔Correct Answer-Second filial generation; grandchildren
Monohybrid cross ✔Correct Answer-Involves one set of traits; purple/ white flowers; two
alleles total
, dihybrid cross ✔Correct Answer-Involves two sets of traits; purple/ white flowers and
short/tall height; four alleles total
True breeding ✔Correct Answer-When self fertilized, the offspring are of the same variety;
homozygous for a trait; homozygous genotype
Gametes ✔Correct Answer-Mature haploid sex cell; sperm, egg, pollen pistol
Punnett Square ✔Correct Answer-Box diagram to figure out probabilities
Test cross ✔Correct Answer-Cross a dominant to a recessive to see if the dominant is
homozygous or heterozygous
Sex linked ✔Correct Answer-Gene on the X chromosome; hemophilia, red/green color
blindness, muscular dystrophy
Hemophilia ✔Correct Answer-Missing one or more clotting factors, blood doesn't clot; X
linked
Sex linked genes ✔Correct Answer-You have to keep track of the dominant and recessive
alleles, but you also have to keep track of the X and Y chromosomes
red/green color blindness ✔Correct Answer-Missing red cones; can't distinguish red colors
from green colors; X linked
Duchenne muscular dystrophy ✔Correct Answer-Missing muscle protein, leads to muscle
degeneration; X linked
Sex limited ✔Correct Answer-Expressed in only one sex; testicular or ovarian cancer
Sex influenced ✔Correct Answer-Gene expression determined by sex; horns on cattle
Genomic imprinting ✔Correct Answer-Some genes behave differently depending on whether
they are inherited from mom or from dad; fragile X syndrome is worse when inherited from
mom; Huntington's is worse if inherited from dad
Fragile X syndrome ✔Correct Answer-Symptoms include mental retardation and enlarged
body parts; forehead, ears, jaw, testicles in males; incomplete dominance
Huntington's disease ✔Correct Answer-Nervous system degenerates; Symptoms include
degeneration of brain cells, uncontrolled muscle movements, abnormal body postures;
dominant gene
