Your answer is B.
It's called an occluded front where the cold air meets the warm air underneath it. Hot air rises over cold air. :) Hope this helps you.
The statement given is the function of RNA.There are three types RNA. Messenger RNA (mRNA) molecules carry the coding sequences for protein synthesis. Rribosomal RNA (rRNA) molecules form the ribosomes, ribosomes are the site of protein synthesis. Transfer RNA (tRNA) molecules carry amino acids and add to the chain of amino acids to form polypeptide chain or protein molecule.
Each male and female sex cell has 46 chromosomes in it. The number of chromosomes are reduced to half(23), so that when the sex cells combine, they also add up to 46(23+23). If the chromosomes did not reduce to half, the number of chromosomes would be off balance and the gamete would not survive.
Answer:
1/8 (12.5%)
Explanation:
An autosomal recessive disease is an inherited disease in which an individual need to receive both defective alleles at the same gene <em>locus</em> to be expressed in the phenotype. In this case, both parents are carriers of the recessive mutant allele associated with the sickle cell anaemia trait, thereby both parents are heterozygous, ie., each parent has one copy of the normal allele 'H' and one copy of the defective mutant allele 'h' associated with this condition. In consequence, their first child has a 1/4 (25%) chance of having sickle-cell anaemia. Moreover, the chance of having a girl is 1/2 and the chance of having a boy is 1/2, thereby the final chance of having a girl sickle cell anaemia individual is 1/4 x 1/2 = 1/8 (12.5%).
- Parental cross for sickle cell anaemia trait = Hh x Hh >>
- F1 = 1/4 HH (normal); 1/2 Hh (normal); 1/4 hh (sickle cell anaemia) >>
- Sex proportion of sickle cell anaemia individuals = 1/8 female sickle cell anaemia individuals + 1/8 male sickle cell anaemia individuals (1/8 + 1/8 = 1/4)
<span>For the Yanomamo, the most important source of nutrition
for them is cooking plantains or bananas. The main crops that they usually
cultivate are bananas and cassava which are planted in their gardens. When the men
are known to be hunters, fishers and horticulturists, the women are the ones
who cultivate their land or gardens. The diet of the Yanomamo are usually low
in edible salt. </span>