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3 years ago

Please see attached image

Biology

2 answers:

tigry1 [53]3 years ago

6 0

Please provide a clearer photo, its extremely blurry

jeyben [28]3 years ago

4 0

I don’t see the attached image that you said you have there it’s blank can you repost it

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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

What is it called when NADP+ becomes NADPH?

Llana [10]

Answer:

This process is called phosphorylation(addition of phosphate) and since the energy comes from photons, this process is termed as photophosphorylation. Yes, the same NADPH donates its hydrogen to combine with CO2 to form glucose (C6H12O6) to become NADP again.

Explanation:

6 0

3 years ago

Read 2 more answers

5 5. Normally, the temperature inside the scrotum is slightly lower than normal body temperature. What do you predict would happ

serg [7]

Answer:

C. Sperm would not be able to develop properly.

Explanation:

There is an optimum temperature where sperm production is at its best. An increase or decrease in temperature may affect the quality and quantity of the sperm.

3 0

3 years ago

A team of astronomers discovers a new planet with water. They notice that there is dew, fog, and clouds in the sky, but it never

love history [14]

Answer: The answer should be A: Precipitation.

Explanation: When we take a look at this question, it mentions that there is dew, fog, and clouds on the planet. Infiltration would have probably been evaporated from the ground and became a cloud. The dew and fog would be the condensation. The astronomers notice that there is never any rainfall, and precipitation in the water cycle is rainfall. So therefore, the missing part of the water cycle would be precipitation

8 0

3 years ago

Phosphatidic acid phosphatase (PAP), also called lipin, converts phosphatidate to diacylglycerol (DAG). Diacylglycerol kinase co

sashaice [31]

Answer:

As the question is incomplete i have added the full question in the ask for detail section of this question.

There will be DECREASE in phospholipipids, and triglycerols formed from DAG by the activation of phosphatidylethanolamine and head groups.

while on the other hand there will be INCREASE in phospholipids formed from polar head group, CDP-DAG, Phosphatidylinositol and Phosphatidate.

8 0

3 years ago

Please see attached image​

Please see attached image