The answer is absorbing dead or decaying organisms
Answer:
1:1
Explanation:
Purines: adenine (A), guanine (G)
Pyrimidines: thymine (T), cytosine (C)
Totals:
![\left[\begin{array}{cccc}A&T&G&C\\82.4&80.8&69.1&68.4\\\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcccc%7DA%26T%26G%26C%5C%5C82.4%2680.8%2669.1%2668.4%5C%5C%5Cend%7Barray%7D%5Cright%5D)
![\left[\begin{array}{cc}Purines&Pyrimidines\\151.5&149.2\\≈150&≈150\\ \end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7DPurines%26Pyrimidines%5C%5C151.5%26149.2%5C%5C%E2%89%88150%26%E2%89%88150%5C%5C%20%5Cend%7Barray%7D%5Cright%5D)
It oxidies iron and inorganic sulfur compounds. The oxidation process can be harmful, as it produces sulfuric acid, which is a major pollutant. It has been suggested that T. ferrooxidans forms a symbiotic relationship with members of the genus Acidiphilium, a bacterial capable of iron reduction. Other species of Thiobacillus grow in water and sediment; there are both freshwater and marine strains.
The bacteria are usually found in rivers, canals, mine drainage effluents and mining areas. So there may be some source of these bacilli near their house.They require inorganic sources to grow and contain an enzyme called ferrous oxidase that allows them to metabolize iron.
<span>They eat iron pipes corroding the pipes leading into households and produce a thick slime layer biofilm.</span>
Probably the hair inside the follicle. It hasn’t reached the outside environment to slowly die.
Answer:
Man's genotype: Bbdd
Woman's genotype: bbDd
First child's genotype: Bbdd
Second child's genotype: bbDd
Explanation:
This is a dihybrid cross involving two genes; one coding for eye color and the other for hair color in humans. The allele for brown eye (B) is dominant over the allele for blue eyes (b) in the first gene while the allele for dark hair (D) is dominant over the allele for red hair (d) in the second gene.
According to the question, A man with brown eyes and red hair will possibly possess genotypes: BBdd or Bbdd while a woman with blue eyes and dark hair will possibly have genotype: bbDD or bbDd. Considering the fact that they produced children with recessive traits for both gene (blue eyes and red hair), it means that they are heterozygous for their dominant trait. This means that the ideal genotype for the man is Bbdd since he will produce gametes containing B and b alleles for the first gene while the ideal genotype for the woman is bbDd since it will produce gametes with D and d allele for the second gene.
Hence, a child with brown eyes and red hair will possess genotype: Bbdd since he/she cannot receive two dominant alleles for the first gene from both parents. A child with blue eyes and dark hair will have genotype: bbDd since he/she cannot receive two dominant alleles of the second gene from both parents.
