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katrin [286]
3 years ago
5

Which best explains the inability for life to exist in Earth’s early atmosphere? Select two options.

Biology
2 answers:
topjm [15]3 years ago
6 0

Answer:

Bro we need to see the options.

Explanation:

Options please.

just olya [345]3 years ago
6 0

Answer:

Volcanic eruptions and comet collisions added different gases to the atmosphere.

Explanation:

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Why does maltose have both alpha and beta anomers?
BabaBlast [244]

Answer:

Maltose is a disaccharide sugar made up of two units of glucose.

In cyclic structure, the glucose exists in two anomeric forms; alpha and beta.

These glucose units can either joined by α (1→4) glycosidic bond or by β (1→4) glycosidic bond.

Thus, the maltose exists in two anomeric form alpha and beta.

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3 years ago
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I believe the answer would be B.
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valina [46]
The hole is a separate phenomenon because it correlates something other than global warming. it doesn’t focus on global warming but more on specific areas.
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Show how two phenotypically normal parents can produce a male child with color-blindness.
Ronch [10]

Answer:

The female (XcX) is carrier for color blindness while the male (XY) is normal. The carrier female transmits its one X chromosome with gene for color blindness to one of her sons making him color blind.

Explanation:

Color blindness is X linked recessive disorder and followed the criss-cross inheritance wherein the color blind sons get the gene from their carrier/affected mother while the color blind father would transmit the gene to his daughters along with X chromosome.

Since both the parents are normal, the mother (XcX) should be carrier for the disease to get the color blind son. A cross between carrier mother (XcX) and normal father (XY) would make 50% of their sons color blind.

6 0
3 years ago
The two nucleotide chains of RNA twist into a double helix shape. true or false ​
Sav [38]

Answer:

False

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In DNA, there are four possible nitrogen bases – adenine (A), guanine (G), cytosine (C), and thymine (T). In DNA, nucleotides combine to form two long chains that intertwine with each other, like a ladder that has twisted into a spiral.

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