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Marta_Voda [28]
3 years ago
15

Which of the following statements about the Earth's atmosphere is true? It contains 21% oxygen. It contains 78% water vapor. It

contains 21% carbon dioxide. It blocks all radiation from the sun.
Biology
1 answer:
liberstina [14]3 years ago
3 0
The answer is 21% oxygen
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mojhsa [17]
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How many different allele combinations would be found in the gametes produced by a pea plant who’s genotype was RrYY?
Viefleur [7K]
2 <span>different allele combinations would be found in the gametes produced by a pea plant who’s genotype was RrYY</span>
3 0
3 years ago
Use the double-stranded DNA molecule below to answer the following questions. The first pair of nucleotides (bolded) contains th
krok68 [10]

Answer:

The correct answer is 2. 5'-AUGUCAGGUACGCCACAU-3'

Explanation:

The template strand for transcription is 3'-TACAGTCCATGCGGTGTA-5 and RNA polymerase will add complementary mRNA sequence against this strand in the opposite direction i.e., 5' to 3' direction.

In RNA, A(adenine) makes complementary base pairing with U(uracil), not with T(thymine) and the rest of the base-pairing is same as in DNA. Therefore the correct mRNA produced from the transcription of this DNA molecule by the help of RNA polymerase is 5'-AUGUCAGGUACGCCACAU-3'.

Then this mRNA sequence will be used by ribosomes to synthesize proteins during the translation process.

7 0
3 years ago
Which of the following metabolic pathways is anabolic?
ioda

Answer:

Photosynthesis

Explanation:

Hmmm I am not entirely sure but I think the explanation is that photosynthesis is a process in which simple compounds are used to make complex compounds whereas in the other processes mentioned its vice versa.

3 0
3 years ago
What does the mesoderm turn into?
bazaltina [42]

Answer:

B. Muscle

Explanation:

During embryonic development, three germ layers start to form in order to eventually go through the process of differentiation. These three layers are: the ectoderm - <em>outer layer</em> -, the <u>mesoderm</u> - <em>middle layer</em> -, and the endoderm - <em>inner layer</em> -.

The <u>mesoderm gives rise to the both skeletal and smooth muscles</u>, <u>blood vessels, heart muscle, cartilage and joints, bone, cartilage, joints, connective tissue, blood cells</u>, amongst other tissues.

7 0
3 years ago
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