Ask question

Ask question

All categories

IrinaVladis [17]

3 years ago

10

which of these is a direct consequence of air pollution on human health A. bioremediation B. respiratory illness C. damaged hear

ing D. high blood pressure

1 answer:

KengaRu [80]3 years ago

7 0

Answer:

B. respiratory illness

Explanation:

Air pollution causes humans to breathe unhealthy air which can lead to respiratory illnesses.

You might be interested in

WILL MARK BRAINIEST

Irina-Kira [14]

Answer:

Trypanosoma brucei rhodesiense and T. brucei gambiense, the ... TLF present in human serum (TLF1 and TLF2) provide innate resistance ... where the parasites are present and it disappears after 2 or 3 weeks. ... to adapt themselves.

8 0

3 years ago

Read 2 more answers

Lipogenesis is common for organic molecules because the intermediate ________ is formed in most nutrient metabolic processes. gl

Anastasy [175]

I think, Lipogenesis is a common for organic molecules because the intermediate Acetyl-CoA is formed in most metabolic processes. Lipogenesis involves the formation of fatty acids from Acetyl-CoA. Acetyl-CoA is an intermediate stage in metabolism of simple sugars, such as glucose, which is the preferred source of energy for most living organisms.

6 0

3 years ago

In Drosophila, an autosomal gene determines the shape of the hair, with B giving straight and b giving bent hairs. On another au

klasskru [66]

Answer:

a. F1 genotype : IiBb F1 phenotype : Hairless

F2 genotype and phenotype :

I_B_ (hairless), iiB_ (straight), iibb (bent)

b. IiBb X iiBb

Explanation:

a. Fly 1 : pure breeding straight haired : iiBB

Fly 2 : pure breeding hairless with bent genotype : IIbb

Fly 1 X Fly 2 : iiBB X IIbb = IiBb (F1)

All the offspring will be hairless since there is one dominant I allele which will inhibit hair production regardless of the type of allele of other gene.

Two F1 flies will be crossed to obtain F2 flies. IiBb X IiBb :

I_B_ : hairless = 9

I_bb : hairless = 3

iiB_ : straight hair = 3

iibb : bent hair = 1

Hairless : straight : bent will be in 12 : 3 : 1 ratio.

b. The offspring of this cross :

hairless : I_ _ _

straight : iiB_

bent : iibb

There is a bent offspring which has both the recessive alleles of both the genes. Hence it must have obtained the two alleles from the two parents. So their genotype is _i_b and _i_b.

Half of the offspring are hairless as given by the ratio. This is only possible if the cross is between Ii and ii fly:

I i

i Ii ii

i Ii ii

So the genotype is Ii_b and ii_b.

The remaining hairy flies are in 3:1 ratio of straight to bent. This is only possible if the cross is between Bb and Bb fly:

B b

B BB Bb

b Bb bb

So the final genotype of the flies is IiBb and iiBb.

4 0

4 years ago

Dna is found in the ___ of the eukaryotic cell

Vitek1552 [10]

in the nucleolus of the cell

8 0

4 years ago

cats tail length is a trait that is incomplete dominant. when a cat witha short tail length is crossed witha long tail, the offs

nlexa [21]

Answer:

50% medium tail and 50% short tail.

Explanation:

Let the allele that controls the tail length in cat be represented by T.

Cats with short tail length will have the genotype of tt.

Cats with long tail length will have the genotype of TT.

Since the trait exhibit incomplete dominance, cats with medium tail length will have the genotype of Tt.

A short tail cat (tt) is crossed with a medium tail cat (Tt).

tt x Tt = Tt, tt, Tt, and tt

<em>Recall that phenotypically, Tt = medium tail and tt = short tail. Hence, 1/2 or 50% of the offspring will have medium tails while the remaining 1/2 or 50% will have short tails.</em>

Hence, the possibilities are 50% medium and 50% short tail cats.

6 0

4 years ago

Read 2 more answers