Biology, 22.06.2019 08:00 notseansafe

This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.

Answers: 2

Show answers

Answers

Answer from: mairealexander87

Sex Linkage

Explanation:

Sex linkage is the phenomenon in which the expression of genes depends on the gender of the organisms because genes for specific traits are located on the sex chromosomes of organisms.

What are sex chromosomes:

They are usually a pair of chromosomes present in higher organisms like humans and other mammals that combine during fertilization of male and female gametes and determine the sex of offspring. In humans they are X and Y chromosomes and when there is an XX offspring, she will e female and when there will be Xy offspring , he will be male.

Significance:

Now there are some genes that are present only on sex chromosomes of the organisms like genes for beard are present in human Y chromosome of men, However,genes found on the X chromosome can be found in either males or females.Sex linked genetic disorders are very common in human males because males receive only one copy of X chromosome while females receive two copies. So only one copy of defective gene is enough for the expression of disease in males while in women two copies are needed if the trait is recessive.For example: There is a disease called hemophilia in which the blood is unable to clot even after minor injuries and can be life threatening.Hemophilia is an X linked recessive disorder and is an example of sex linked traits controlled by sex linked genes.

Hope it helps!

Answer from: edjiejwi

Sex Linked :)

Answer from: Quest

Answer : romans built laws to manage the pollution which was lead by smoke produced by the factories.

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.

Answer from: Quest

the sun's light combined with the visible wavelenghts form what is called ultraviolet radiation, which are the long waves at the end of a visible light sprectrum.

hope it ,

bioteacher101

Another question on Biology

Biology, 21.06.2019 14:20

Look at the figure above. which atmospheric layer has around 80 percent of the mass of the earth's atmosphere? (hint: it's where the clouds seen on earth are formed.) a. exosphere b. troposphere c. stratosphere d. thermosphere

Answers: 2

Answer

Biology, 22.06.2019 01:20

Look at the photo of the leaf. which term best describes this leaf?

Answers: 2

Answer

Biology, 22.06.2019 07:30

The hematodinium parasite becomes less of a problem for the blue crab when the crab is very young. fishing is thriving in the region. the crab moves to less salty water. a significant percentage of the population is impacted.

Answers: 3

Answer

Biology, 22.06.2019 09:30

Consider the following reaction: 2h2 + o2 —> 2h2o a) what are the reactants in this reaction? b) what are the products in this reaction? c) how many molecules of oxygen are used in this reaction?

Answers: 2

Answer

You know the right answer?

This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an org...

Questions

Biology, 18.01.2021 14:00

Alcatuiti un text cu tema ”Hranirea in lumea vie” in care sa utilizati urmatorii termeni: - autorof - fotosinteza -bacterii - stoma...

Engineering, 18.01.2021 14:00

Joe, a technician, is attempting to connect two hubs to add a new segment to his local network. He uses one of his CAT5 patch cables to connect them;...