Question

vocabulary practice, continued
d. vector vocabulary define the words in the boxes. on the line across each arrow, write a phrase that describes how the words in the boxes are related to each other.
gene
1.
2.
phenotype
5.
allele
3.
4.
9.
6.
genotype
10.
dominant
7.
recessive
8.
11.
homozygous
12.
heterozygous
13.

Explanation:

1. A gene is a unit of heredity made of DNA.
2. Genes can have different forms called alleles.
3. An allele is an alternative form of a gene.
4. Alleles determine phenotype.
5. Phenotype is the observable traits of an organism.
6. Alleles can be dominant or recessive.
7. A dominant allele masks the effect of a recessive allele.
8. A recessive allele is only expressed when two copies are present.
9. Genotype is the genetic makeup of an organism.
10. Genotype consists of alleles.
11. Genotype can be homozygous or heterozygous.
12. Homozygous means having two identical alleles.
13. Heterozygous means having two different alleles.

Answer:

1. A unit of heredity made of DNA.
2. Genes have different forms called alleles.
3. An alternative form of a gene.
4. Determine phenotype.
5. Observable traits of an organism.
6. Alleles can be dominant or recessive.
7. Masks the effect of a recessive allele.
8. Only expressed when two copies are present.
9. Genetic makeup consists of alleles.
10. The genetic makeup of an organism.
11. Genotype can be homozygous or heterozygous.
12. Having two identical alleles.
13. Having two different alleles.