AP BIOLOGY

CELL DIVISION

MEIOSIS AND GENETIC VARIATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Chromosomes that code for the same genes (traits), but may have different alleles are known as ____
A
sister chromatids
B
homologous chromosomes
C
Haploid
D
Centromere
Explanation: 

Detailed explanation-1: -The chromosomes in a homologous pair each have the same genes in the same order, but there may be variation between them, resulting in different alleles. Some of the variants in these alleles might have functional implications while others will not.

Detailed explanation-2: -Homologous chromosomes are matched pairs containing genes for the same traits in identical locations along their length. Diploid organisms inherit one copy of each homologous chromosome from each parent; all together, they are considered a full set of chromosomes.

Detailed explanation-3: -In biology, homologous chromosomes are paired chromosomes. They essentially have the same gene sequence, loci (gene position), centromere location, and chromosomal length. Although they may have the same genetic sequence and loci, they may differ in alleles.

Detailed explanation-4: -Heterozygous refers to having different alleles for a particular trait. If the two versions are different, you have a heterozygous genotype for that gene. The relationship between the two alleles affects which traits are expressed.

Detailed explanation-5: -The chromosomal pair which contains the maternal as well as the paternal chromatid of the same length and gene position, and are joined by the centromere is referred to as a homologous chromosome.

There is 1 question to complete.