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grigory [225]
3 years ago
7

5. What is the correct description of the genotype for individuals that express the trait cystic fibrosis?

Biology
1 answer:
vekshin13 years ago
4 0

Answer:

homozygous recessive

Explanation:

Cystic fibrosis is a recessive genetic disorder. It means that the trait is caused due to the presence of a recessive allele. The recessive alleles are expressed only in homozygous recessive genotypes. Individuals that express the disorder cystic fibrosis should have two copies of a recessive allele of the gene, that is, the genotype should be homozygous recessive.

If "C" allele is the normal healthy allele and "c" allele is cystic fibrosis allele, the genotype of the affected individual would be "cc".  

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To which organelle does a C-terminal signal peptide sequence of the four amino acids KDELdirect peptides?
Fofino [41]

Answer:

Endoplasmic reticulum.

Explanation:

Protein synthesis, sorting and transport is the important mechanism for the synthesis of protein in the body and the transport of the protein to its specific site or organ. The protein must reaches to its final destination for its proper functioning.

KDEL ( K- leucine, D is aspartic acid, E is glutamic acid and L is lysine ) is the stretch of a specific amino acid that are responsible for the protein molecule to target at its specific site. KDEL is specific for the transport of peptides to the endoplasmic reticulum.

Thus, the correct answer is option (A).

7 0
3 years ago
What is the definition of epistasis?
ollegr [7]

The definition of Epistasis in gene biology is Choice D: when the allele of one gene masks the phenotype of another gene

Definition:

When the phenotypic effect of alleles at one gene are masked by alleles of another gene.

In essence, a gene is said to be epistatic when its presence suppresses the effect of a gene at another locus.

It is important to know that Epistatic genes are often called inhibiting genes because of their effect on other genes which are described as hypostatic.

Additionally, there are six common types of epistasis gene interactions:

  • Dominant

  • Dominant inhibitory,

  • Duplicate dominant,

  • Duplicate recessive,

  • Polymeric gene interaction,

  • Recessive.

Read more:

brainly.com/question/24167831

6 0
3 years ago
all living organisms have DNA. That DNA is made of the same building blocks(nucleotides). what does this evidence suggest?​
melisa1 [442]
It suggest that any living abject has DNA. Even if the organ is not living it still consist of DNA because it doesn’t disappear after it dies
5 0
3 years ago
A pesticide tolerance refers to the a. amount of a pesticide that can be applied to a food and how much of the pesticide that is
Lera25 [3.4K]

Answer:

a. amount of a pesticide that can be applied to a food and how much of the pesticide that is permitted to remain on the food in the marketplace.

Explanation:

Pesticides are chemical substances used to get rid of or kill pests that attack crops on farmlands. These pesticides, although help the farmer to get rid of his pest problem and likely have an increase in yield, are dangerous to human and animal health if consumed.

As set up by the Environmental Protection Agency (EPA), pesticide tolerance is the amount or quantity of pesticide chemical that can be applied to a food and how much of the pesticide that is permitted to remain on the food in the marketplace.

7 0
3 years ago
Some words related with silk are jumbled up. Write them in their correct form. (a) TURECULRISE (b) WILSMORK (c) BELMURRY (d)
Andrej [43]

Answer:

A) sericulture

b) silkworm

c) mulberry

d)i don't know

6 0
3 years ago
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