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Genetics Vocabulary
Test Description: Genetics Vocabulary
Instructions: Answer all questions to get your test result.
1) a gene or heritable characteristic carried by a sex chromosome
A
alleles
B
sex linked
C
codominant
D
incomplete dominance
2) Observed trait of an organism that masks the recessive allele of a trait
A
genes
B
dominant
C
carrier
D
pedigree
3) The observable or detectable characteristics of an individual organism--the observable expression of a genotype
A
y chromosome
B
phenotype
C
heredity
D
genotype
4) In humans and other mammals a sex chromosome, two of which are normally present in female cells and only one in male cells
A
genotype
B
heterozygous
C
homozygous
D
x chromosome
5) A genotype consisting of two different alleles of a gene for a particular trait. Also referred to as a hybrid
A
heterozygous
B
homozygous
C
recessive
D
codominant
6) Condition in which a trait in an individual is intermediate between the phenotype of its two parents (blended)
A
codominance
B
genotype
C
carrier
D
incomplete dominance
7) An alternate form of a gene for one trait.
A
heredity
B
dominant
C
sex linked
D
allele
8) The trait (allele) of an organism that can be masked by the other form of that trait (allele)
A
y chromosome
B
recessive
C
incomplete dominance
D
dominant
9) Transmission of genetic traits from parent to offspring
A
codominant
B
pedigree
C
heredity
D
genetics
10) A genotype consisting of two identical alleles of a gene for a particular trait
A
phenotype
B
genes
C
homozygous
D
heterozygous
11) The study of heredity and the variation of inherited characteristics
A
genetics
B
carrier
C
genes
D
alleles
12) Person or other organism that has inherited a recessive allele for a genetic trait or mutation but does not display that trait or show symptoms of the disease
A
genotype
B
phenotype
C
incomplete dominance
D
carrier
13) In humans and other mammals a sex chromosome that is normally present only in male cells.
A
x chromosome
B
carrier
C
Y chromosome
D
alleles
14) The smallest pieces of chromosomes; determine what we look like
A
pedigree
B
genetics
C
genes
D
heredity
15) The actual code that alleles or genes posses (eg. TT, Tt, or tt). The gene may or may not be expressed when you observe a living organism
A
carrier
B
genotype
C
codominant
D
Allele
16) Diagrams that are used to trace the inheritance of a specific trait, abnormality, or disease. Standard symbols are used to represent males, females, mating and offspring
A
pedigree
B
carrier
C
incomplete dominance
D
dominant
17) Relating to two alleles of a gene pair in a heterozygote that are both fully expressed. When alleles for both white and read are present in a carnation, for example, the result is a rad and white carnation
A
sex linked
B
homozygous
C
incomplete dominance
D
codominant
*select an answer for all questions
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