Human somatic cells have 46 chromosomes, including 22 homologous pairs and one pair of nonhomologous sex chromosomes. This is the 2n, or diploid, condition. Human gametes have 23 chromosomes, one each of 23 unique chromosomes. This is the n, or haploid, condition.
Answer: b.They do not tolerate highly saline environments.
Mangroves are salt tolerant short trees that grows in coastal regions. They grow in extreme brackish or saline water. Therefore, they are called as halophiles. They exhibit a complex salt filtration system to remove out excess salt. They have two types of specialized roots systems they are impermeable to sodium salts. These roots contains suberin in order to decrease salt intake along with water. Salt which gets accumulated in the shoots is transferred to leaves which shed in old age. Hence, they excrete salts through leaves. They have stilt roots which are grown on the surface of soil.These roots have pores on their bark which allows the absorption of oxygen from the atmosphere.
Hemoglobin carries the oxygen.
blue=2%
Explanation:
The explanation by the paragraph it is said (to find the percent divide the total number of blue-eyed by the total number of babies born) 20÷10 =2 . The answer is 2%
Answer:
Option B
Explanation:
Given
Number of incidences or frequency of an autosomal recessive disease
As per Hardy Weinberg's equation, frequency of a recessive genotype is
As per first equation of Hardy Weinberg's -
so ,
As per second equation of Hardy Weinberg's -
Substituting the given values in above equation, we get -
%
Hence, option B is correct.