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3 years ago

Please help me with this

Biology

2 answers:

Leya [2.2K]3 years ago

7 0

Answer:

option 1 is the crt answer

Explanation:

B and j show more dna similarity as B is the direct ancestor of j

Aleksandr [31]3 years ago

4 0

Answer:

bro ineed help to

Explanation:

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Where do sensory nerve cells, parasympathetic ganglia, and symphathetic postganglionic fibers found?

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Answer:

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Explanation:

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3 years ago

Define biomass plzzzzzzzzzz

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Answer:

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Explanation:

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3 years ago

What best explains the relationship between photosynthesis and cellular respiration?

DiKsa [7]

Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

4 0

3 years ago

In a plant, leaf color and leaf shape are controlled by two linked genes Leaves of the wild-type plant are red. A recessive muta

Brrunno [24]

Solution :

Red is dominant over the white leaves and pointed is dominant over smooth.

Red = R , white = r

Pointed = P , smooth = p

Red, pointed x white,smooth ------ Parents

RRPP rrpp

RP rp ----------------- Gametes

RrPp -------- $F_1$

(red, pointed)

When this $F_1$ is test crossed,

RrPp x rrpp ---- $F_1$ test cross

Gametes → rp

RP ---------- RrPp - red, pointed - 36 parental type

Rp ---------- Rprp - red, smooth - 14 re- combination

rP ----------- rrPp - white pointed - 10 re- combination

rp ----------- rrpp - white, smooth - 40 - parental type

Total = 100

As this ratio is deviating from 1:1:1:1, it indicated the two genes are linked.

Linkage strength = percentage of crossing over = map distance between the genes.

Percentage crossing = recombination frequency = percentage of recombination.

Recombination frequency $=\frac{\text{total no. of recombination}}{\text{total no. of progeny}}\times 100$

$=\frac{14+10}{100} \times 100$

= 24 %

= 24 map units

4 0

3 years ago

N2 + 3H2 → 2NH3 in this equation How many moles of NH3 can be made if 7.5 moles of H2 react with enough N2

Lena [83]

Answer:

5 moles of ammonia would be formed.

Explanation:

Given data:

Moles of NH₃ formed = ?

Moles of H₂ react = 7.5 mol

Solution:

Chemical equation:

N₂ + 3H₂ → 2NH₃

Now we will compare the moles of ammonia with hydrogen.

H₂ : NH₃

3 : 2

7.5 : 2/3×7.5 = 5

5 moles of ammonia would be formed from 7.5 moles of hydrogen.

7 0

3 years ago