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Step2247 [10]
3 years ago
13

Explain how a mutation that changes the amino acid sequence of the protein hemoglobin affects the protein and results in sickle

cell anemia.
Biology
1 answer:
Montano1993 [528]3 years ago
4 0

Answer:

sickle cell anemia is caused by a mutation in the hemoglobin beta (or HBB) gene and it leads to a single change in amino acid sequence. this gene is located on chromosome 19

Explanation:

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Which type of molecule contains the alcohol glycerol? which type of molecule contains the alcohol glycerol? carbohydrate phospho
butalik [34]
The type of molecules that contains the alcohol glycerol are PHOSPHO-LIPIDS.
Glycerol is a three carbon alcohol on which some phospholipids are built. Phospholipids which are derived from glycerol are called phosphoglycerides.
6 0
3 years ago
Use Chargaff’s rules to predict the missing values for E. coli, human, and ox DNA. Round your answers to the nearest whole numbe
Black_prince [1.1K]

Answer:E. coli: Cytosine- 26, Thymine-24

Human: Guanine-20, Cytosine-20

Ox: Guanine-21, Cytosine-21, Thymine-29

Explanation:

Chargaff's rules state that in a given DNA molecule the percentage of Adenine %A is approximately equals the percentage of Thymine %T and the percentage of Guanine %G is approximately equals the percentage of Cytosine %C.

Answer is

E. coli: Cytosine- 26, Thymine-24

Human: Guanine-20, Cytosine-20

Ox: Guanine-21, Cytosine-21, Thymine-29

7 0
3 years ago
The graph below is of directional selection. Which statement can be supported by the evidence shown in the graph?
7nadin3 [17]

<u>Answer</u>: C) Directional selection occurs when one of two extreme phenotypes is selected for.

The type of natural selection known as directional selection is defined in population genetics in the case in which an extreme phenotype is favored over other phenotype. Thus, the population and its allele frequency will evolve towards this end of the trait spectrum (extreme phenotype). This is also the case illustrated in the graph where the right side represents the extreme phenotype.

3 0
3 years ago
Is a grape biotic or abiotic
Softa [21]
It's biotic, biotic is basically anything living

Hope this helps
8 0
3 years ago
The smallest units considered to be alive are organelles
aivan3 [116]
This is true. Hope this helps.
7 0
4 years ago
Read 2 more answers
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