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maksim [4K]
3 years ago
14

What two layers of the egg must the sperm penetrate to reach the egg's plasma membrane?

Biology
1 answer:
mezya [45]3 years ago
3 0
The celvex and the uterus
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Transcribe the following strand of DNA: 5' A T T G C G A A C T G C G A G G A C T T C 3'?
Marina86 [1]

Answer:

The correct answer will be-

3'- T U U C G C T T G U C G C T C C T G U U G -5'.

Explanation:

The formation of the mRNA from the template strand or anti-sense strand is known as the transcription.

The nucleotide in the mRNA is added in the same way as the DNA according to the Chargaff rules which states that A will bind to T and G will bind to C but instead of adenine in mRNA will add uracil.

On the basis of this, the mRNA strand will be-

template strand:  5' A T T G C G A A C T G C G A G G A C T T C- 3'

mRNA strand:     3'- T U U C G C T T G U C G C T C C T G U U G-5'.

8 0
3 years ago
How do pockets increase a lung´s surface area?
icang [17]

Answer:

many alveoli are present in the lungs with a shape that further increases surface area. Thin walls - alveolar walls are one cell thick providing gases with a short diffusion distance. Moist walls - gases dissolve in the moisture helping them to pass across the gas exchange surface.

Explanation:

8 0
3 years ago
I need help please thank you.
Fantom [35]
Hey!
8= B : adenine with thymine , guanine with cytosine.

9= False : its not single , *dual* helical structure.

10= Every humans' DNA is different but its as similar as our relatives' DNAs as far as i know so its False.

11 = The two backbones of the DNA molecule consists a deoxyribose sugar ^with 5 carbone^ and a phosphate so the correct answer is B

12= Procaryotes' Genomes are simpler- structured than eukaryotes' so procayotes DNA is 1/1000 of eukaryotes.I couldnt translate the options correctly (im not native sorry) but i think its B according to my knowledge of that XD

13= the amount of adenine, guanine, thymime and cytosine must be same so the correct option is %40as well.

Hope it helps!!!
#MissionExam001
7 0
3 years ago
Corals obtain energy from tiny photosynthetic algae, called zooxanthellae, which live inside the coral's tissue. How do you thin
Step2247 [10]

Photosynthesis is a process that uses the soliare to produce chemical energy (glucose). This means that the algae living in the water require a supply of solar light, and for that it would be necessary that the water is clear so that the solar rays can pass and reach the algae.

In the case where these corals and algae live in a cloudy or muddy water, the sun's rays do not pass very well, and therefore the photosynthesis of these algae is altered.

5 0
3 years ago
In procedure b, which tube showed the most digestion of egg albumin? what can you conclude about the ph optimum of pepsin?
sammy [17]

Answer:

Following incubation, the most digestion of egg albumin (protein) in exercise "B" occurred in tube 2. This shows that the enzyme pepsin has both a pH optimum (acidic) and a temperature optimum (37C).

8 0
3 years ago
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