X linked traits and recombination

Question 1

what genes does sex linked traits involves

Answer 1

genes on the sex chromosomes - X and Y

Question 2

does sex linked traits effect males and females equally

Answer 2

no - inheritance patterns differ between males (XX) and females (females)
males always get the fathers Y and daughters always gets the fathers X

Question 3

what is gene mapping

Answer 3

Gene mapping is the process of determining the location of genes on chromosomes, essentially creating a “map” of the genome. This process involves identifying the position of genes and the distances between them, as well as identifying the location of various sites within a gene

Question 4

how do we know linked genes are inherited

Answer 4

because they show biases towards parental genotypes

Question 5

how can you determine the order and location of genes within a chromosome

Answer 5

by using recombination frequencies

Question 6

what are recombination frequencies

Answer 6

Recombination frequency is a measure of how often a chromosomal crossover occurs between two genes during meiosis, indicating the degree of genetic linkage. It’s essentially a probability that genes will be separated from each other during reproduction.

Question 7

how does distance between genes and recombination frequency compare

Answer 7

the smaller the distance between the 2 genes - the less likely a chiasmata will be formed between them
the shorter the distance - the lower the frequency