In: Biology
Think about homologous chromosomes.
What is the same about them? _____________
What is potentially different? ______________
Group of answer choices
alleles ; characters
genes ; alleles
traits ; genes
characters ; traits
ANSWER
genes ; alleles
EXPLANATION;
DNA is the genetic material, which is broken into chromosomes. In humans there are 46 chromosomes( 23 pairs) , out of which 22 are homologus , these are a set of one maternal and one paternal chromosome that pair up with each other inside a cell during fertilization. The remaining is 1 pair is sex chromosome(X , Y _not homologous because their size and gene content differs.) 22 pairs of homologous chromosomes (results from mitosis and genetic recombination during meosis)are very similar to one another.As they:
But they potentially differ because, they code for different traits in their allelic forms since one was inherited from the maternal side and one from the paternal side. It is because of these similarity and difference, a species pass down same genetic information, while each individual is distinct with varying phenotypic characteristics. |