Question

can you label these chromosomes with the correct genetic terms? a sister chromatids b gene locus c recessive allele d centromere e homologous chromosomes f alleles g dominant allele r r

Explanation:

Sister chromatids are identical copies formed during DNA replication. Gene locus is the specific position of a gene on a chromosome. Dominant and recessive alleles are different forms of a gene, with the dominant one masking the recessive in heterozygous individuals. Alleles are alternative forms of a gene. The centromere is the constricted region that holds sister chromatids together. Homologous chromosomes are pairs of chromosomes with the same genes at the same loci, one from each parent.

Answer:

a. Sister chromatids are the two identical parts of a replicated chromosome.
b. Gene locus is the location of a gene on a chromosome.
c. Recessive allele is the form of a gene that is masked in the presence of a dominant allele.
d. Centromere is the region that joins sister - chromatids.
e. Homologous chromosomes are pairs of chromosomes with similar genetic content.
f. Alleles are alternative forms of a gene.
g. Dominant allele is the form of a gene that is expressed in the phenotype.