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IRISSAK [1]
3 years ago
11

Prions are

Biology
1 answer:
lakkis [162]3 years ago
7 0

Answer:

D) infectious proteins with no associated nucleic acid.

Explanation:

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What is the chemical mechanism by which cells make polymers from monomers?
PSYCHO15rus [73]

Answer:

the chemical mechanism is Dehydration Synthesis

Explanation:

Dehydration reactions assemble polymers, and hydrolysis reactions break down polymers. The enzyme amylase will break down glycosidic linkages between glucose monomers only if the monomers are the A form.

3 0
3 years ago
What is a freshwater biome?
irina [24]

Answer: Freshwater biomes have water that contains little or no salt. They include standing and running freshwater biomes. Standing freshwater biomes include ponds and lakes. Running freshwater biomes include streams and rivers

7 0
3 years ago
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Which of the following summarizes expression of the lac genes in this partical diploid: I+ P+ Oc Z− Y+ / I− P+ O+ Z+ Y− ? Which
Darina [25.2K]

Answer:

Option (4).

Explanation:

Lac operon is present in E.coli that regulate the metabolism of lactose in the bacteria. Lac Operon consists of three genes : Lac Y, lac Z and lac A, an operator and a promoter.

I+ P+ Oc Z− Y+ / I− P+ O+ Z+ Y− , in this case inducer is present, promoter is present, constitutive region and the gene lac Z and lac Y indicates the Z and Y. The permease enzyme will made in the presence and absence of lactose due to the presence of I+ P+ Oc in the cell but beta galactosidase is only made in presence of lactose as Y− gene is present in the diploid cell.

Thus, the correct answer is option 4.

3 0
3 years ago
Describe an individual with the karyotype shown.
diamong [38]

Answer:

A) missing one X chromosome

B) XXY

C) extra 21 chromosome

D) all relevant number of chromosomes

Explanation:

A) See attachment 1

B) see 2nd attachment

C) see 3rd attachment

D) see 4th attachment

6 0
3 years ago
What color does egg yolk turn when you add Benedict solution?
Luda [366]

Answer:

Benedict solution makes egg yolk turn purple :)

3 0
3 years ago
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