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gayaneshka [121]
3 years ago
9

Need helpppppppppplppl

Biology
1 answer:
mr_godi [17]3 years ago
7 0

Answer:

pyroclastic flow

ash cloud

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When plants make flowers, gene A is expressedin whorls 1 and 2, gene B is expressed in whorls 2 and 3 and gene C in whorls 3 and
Sati [7]

Answer:

The correct answer would be option D) no gametes.

Explanation:

The ABC model of the flower was formulated to describe the collection of genetic procedures that determines floral organs in several plants. These species consist of four whorls which are sepals, petals, stamens, and carpels. These whorls are expressed by the expression of a number of genes present in each whorl or verticli.

Gene A is solely responsible for the sepals while the co-expression of A and B genes are responsible for the petals. The identity of the stamens is expressed by B and C and the carpels require C and D genes to be active.

The homozygousity for a normal mutation in gene C will lead to inactive or lack stamens and carpels, which are male and female reproductive organs. These are an important structure for forming gametes.

Thus, the correct answer would be option D) no gametes.

3 0
3 years ago
Which of the following invented the polymerase chain reaction (PCR) that allowed scientists to enlarge and study genetic materia
ioda
The correct answer for this question would be the second option. The one who invented he polymerase chain reaction (PCR) that allowed scientists to enlarge and study genetic material is Kary Mullis. PCR is <span> a technique that amplifies specific DNA sequences from very small amounts of </span>genetic material<span>. Mullis invented this while he is at Cetus. </span>
3 0
3 years ago
What kind of injury occurs most often in fireworks accidents?
EleoNora [17]
Hello! The correct answer for the question is: Burns.



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3 years ago
Two parents are carriers of cystic fibrosis. If they have four children, how many will probably have the disease?
professor190 [17]
Likely all of them will have it, if they are both carriers. 
7 0
3 years ago
Which of the following statements describes how a balance obtains a measurement?
Tanya [424]

Answer:

sorry if wrong

Explanation:

b I think sorry if wrong

8 0
3 years ago
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