PLEase help will give brainliest

What makes the sense of taste and smell different from the other three senses

kherson [118]

Well for one the sense of taste aquires smell and frangances and flavoring.

3 0

3 years ago

Nature of Matter Worksheet<br><br> • A pure substance containing only one kind of

mart [117]

Answer:

A pure substance containing only one kind of ( atom )

Explanation:

Since it is one atom it is an element. An element is a pure substance that cannot be separated into two materials unlike a compound. This makes the substance pure. Like melting or cutting a gold bar into gold nuggets. It's still gold but it isn't the same shape but same density.

Hope this helps

- massmaster34

7 0

3 years ago

What is the primary symptom of niacin toxicity?

QveST [7]

The answer to this question would be: d) flushing<span>
Niacin or nicotinic acid is also known as vitamin B3. Niacin has a role in lipid metabolism and consuming a high dose of niacin can lower LDL, lower triglyceride and increase HDL. Therefore, niacin can be used to improve lipid profile. The symptomps of toxicity should be flushing or hepatotoxicity.</span>

8 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

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

How do somatic and inherited mutations differ?

telo118 [61]

The right option is; C. Inherited mutations exist in all cells in the body and somatic mutations only exist in the cell type that mutated.

Inherited mutations are gene mutations that exist in almost every cell in the body throughout an individual’s life. Inherited mutations are inherited from a parent and can also be transmitted. They are also called germline mutations because they exist in the parent’s egg or sperm cells (gametes).

Somatic mutations are gene mutations that exist in only certain cell types that are mutated, not in every cell in the body and it take place at some time during an individual’s life. Somatic mutations are not inherited and cannot be passed. They are caused due to environmental factors (such as cigarette smoke or ultraviolet (UV) radiation) or due to error during DNA replication.

7 0

3 years ago