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Alina [70]
2 years ago
12

Name the stages of the plant life cycle:

Biology
2 answers:
Alenkinab [10]2 years ago
8 0

Answer:

Explanation:

Seed Stage

Germination.

Growth.

Reproduction.

Pollination.

Spreading Seeds.

Ilia_Sergeevich [38]2 years ago
3 0

Answer:

Seed Stage, Germination, Growth, Reproduction, Pollination

Explanation:

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Dmitry_Shevchenko [17]

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What is the problem... nothing is listed??

Explanation:

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2 years ago
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What are the 4 ingredients in DNA??
maksim [4K]
<span>adenine (A), cytosine (C), guanine (G) and thymine (T)
I think
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4 0
3 years ago
Please help its due in a hour!!!!!
garri49 [273]

Answer:

1. The difference between the normal hemoglobin protein DNA sequence and the sickle cell hemoglobin DNA sequence is a base to base shift, in this case adenine (GAG) to thymine (GTG).

2. The difference affects the amino acid sequence of the protein by replacing glutamic acid (Glu) with valine (Val).

Explanation:

In sickle cell anemia, a change in the DNA nucleotide sequence is observed, where adenine is substituted by thymine, whose expression is the change in the amino acid sequence of globine β, incorporating valine instead of glutamic acid. This represents a molecular mutation - point mutation - by subtitution, which corresponds to missense mutation.

<u>Normal hemoglobin protein in a RBC</u>

DNA                 CTG ACT CCT GAG GAG AAG TCT

Amino acids     Leu  Thr   Pro   Glu   Glu   Lys   Ser

<u>Sickle cell hemoglobin protein in a RBC</u>

DNA                 CTG ACT CCT <em>GTG</em> GAG AAG TCT

Amino acids     Leu  Thr   Pro   <em>Val</em>   Glu   Lys   Ser

When GAG is transcribed to mRNA, the CUC codon is obtained, which codes for glutamic acid. Thymine substitution causes the DNA sequence to change to GTG, which is transcribed as CAC, the codon that encodes the amino acid valine. The <u>change from glutamic acid to valine in β-globin causes an altered hemoglobin, giving the abnormal erythrocytes observed in sickle cell disease</u>.

6 0
2 years ago
What parts of a nucleotide make up the backbone of a nucleic acid? pairs of nitrogen bases pairs of sugars sugar and nitrogen ba
mixer [17]
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Therefore your answer is sugar and phosphate.
4 0
2 years ago
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If the frequency of the recessive allele for a gene is 0.5, calculate the expected frequency of heterozygotes in the next genera
Oxana [17]

Answer:

i think the answer is 2.5

7 0
2 years ago
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