Sickle cell disease (scd) is caused by a recessive version of the hemoglobin gene. in the us, scd occurs in about 0.2% of the newborn babies. in some african countries, 4% of the newborn babies have sickle cell. out of a random sample of 10,000 newborn babies in the us, how many would you expect to be homozygous for the normal, dominant hemoglobin genotype assuming hardy weinberg equilibrium?

Number of babies with dominant hemoglobin genotype will be

Explanation:

Given -

% of babies have SCD which means they have recessive version of hemoglobin

Let the recessive version of hemoglobin be represented by "h" and normal version of hemoglobin be represented by "H"

Babies having SCD will have genotype "hh" i.e homozygous recessive.

As per Hardy Weinberg's equation -

Thus, frequency of allele for recessive version of hemoglobin (h) is

Frequency of allele for normal version of hemoglobin (H) is

Thus, Frequency  of population with normal version of hemoglobin i.e HH is equal to

hence, number of babies with dominant hemoglobin genotype will be

it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.

explanation:

the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.

countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.

burning fossil fouls really decrease the carbon in the atmosphere so b