What is the name for one half of a chromosome?
A. centromere
B. chromatid
C. protein
D. gene
B. chromatid
Which statement about genetic material is correct?
A. Genes encode deoxyribonucleic acid.
B. Chromosomes are made up of genes.
C. Chromatids contain chromosomes.
D. Centromeres connect two chromosomes.
B. Chromosomes are made up of genes.
In pea plants, the allele for tall height, T, is dominant over the allele for short height, t. A pea plant has two different alleles for height. Which statement about the pea plant is correct?
A. The phenotype for height is tall, and the genotype is TT.
B. The phenotype for height is short, and the genotype is tt.
C. The phenotype for height is short, and the genotype is Tt.
D. The phenotype for height is tall, and the genotype is Tt.
D. The phenotype for height is tall, and the genotype is Tt.
How are the terms homozygous and heterozygous different?
A. Homozygous describes having dominant alleles for a trait, and heterozygous describes having recessive alleles for a trait.
B. Heterozygous describes having two of the same allele for a trait, and homozygous describes having two different alleles for a trait.
C. Homozygous describes having recessive alleles for a trait, and heterozygous describes having dominant alleles for a trait.
D. Homozygous describes having two of the same allele for a trait, and heterozygous describes having two different alleles for a trait.