What is the reason that linked genes are inherited together? a. they are located close together on the same chromosom b. the number of genes in a cell is greater than the number of chromosomes. c. chromosomes are unbreakable. d. alleles are paired together during meiosis. e. genes align that way during metaphase i of meiosis.

A little basic info:

Chromosomes are molecules of DNA that carry groups of genetic information. Some genes group up in the same chromosome, and this it what we'll see below.

Why are linked genes inherited together? What are they?

This question is more simple than it looks, since there's really little to explain. Linked genes, are genes inherited through the same chromosome:

→ When 2 genes tend to group-up on the same chromosome, they tend to be inherited together, but still, this doesn't happen always and the probablity of this happening is just slightly above 50%.

Remember:

Only genes that sit close together on a chromosome are likely to be inherited together, because if they're to far apart in the chromosome, the process of (homologous) recombination might separate them.

→ To make things simple, homologous recombination is when similar DNA moleculas are moved and recombined in a different way.

Hope it helped,

BioTeacher101

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure