Homologous chromosomes Choose true or false for each statement listed below.

Discipline: Biology (and other Life Sciences)

Type of Paper: Question-Answer

Academic Level: Undergrad. (yrs 3-4)

Paper Format: APA

Pages: 1 Words: 275

Question

Homologous chromosomes

Choose true or false for each statement listed below.
1. Chromosomes that are heterozygous for an allele are not homologous. TrueFalse
2. Haploid organisms can have homologous chromosomes. TrueFalse
3. Homologous chromosomes are 99% identical. TrueFalse
4. Homologous chromosomes carry the same types of genes. TrueFalse
5. Homologous chromosomes may contain different alleles of a gene. TrueFalse
6. The physical location of a gene on the chromosome is called its allele. TrueFalse


Expert Answer

Answer:

1. Chromosomes that are heterozygous for an allele are not homologous.----------- False

Allele is a varian form of a gene. Even alleles are different, but they belongs to same gene, hence, the chromosomes are said to be homologous chromosomes.
2. Haploid organisms can have homologous chromosomes.------- False

Haploid --- the presence of one set of chromosomes. Only one set of chromosomes present in an organism, hence, no homologous pair.
3. Homologous chromosomes are 99% identical.------ True
4. Homologous chromosomes carry the same types of genes.------- True
5. Homologous chromosomes may contain different alleles of a gene.------------ True
6. The physical location of a gene on the chromosome is called its allele. ------False

The physical location of gene is called locus (plural=loci). An alleles are variant forms of a gens.