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Alex777 [14]
1 year ago
5

A human somatic cell is in g1 of the cell cycle. How many physical copies of the ldlr gene does this cell have?

Biology
1 answer:
Ivenika [448]1 year ago
7 0

A human somatic cell is in g1 of the cell cycle. The cell will have <u>two copies </u>of the ldlr gene.

  • Humans are diploid, which means that each chromosome has two copies.
  • Since a diploid organism is produced by the union of two gametes, each of which contains one set of chromosomes (N), diploid cells (all the cells in our body aside from our gametes) have 2N.
  • It helps to think of chromosomes as bundles of genetic data when discussing chromosome number (ploidy).
  • Because each sister chromatid has genetic material (alleles) inherited from just one parent, they make up one chromosome.
  • A diploid organism has two copies of each gene during G1 of interphase. The cell is only developing and functioning normally in the body during the G1 phase.

learn more about G1 phase here: brainly.com/question/11779221

#SPJ4

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Enzymes can be inhibited in different ways. Describe two methods of enzyme inhibition by describing similarities and differences
Irina18 [472]

Enzymes can be inhibited in different ways this can inclued three types of reversible enzyme inhibition: competitive, non-competitive and uncompetitive.

<h3>How can enzymes be inhibited?</h3>

Irreversible and reversible enzymatic inclusion. A valent-chain inhibitor occurs with a valent-chain inhibitor, whereas a valent enzyme does not occur with a valent-chain inhibitor.

In enzymatic inhibition, the inhibiting substance forms chemical bonds with the enzymes in order to interfere with their catalytic activity. This inclued  types of  enzyme inhibition:

  • Irreversible inhibitors bind to enzymes leading to their definitive inactivation. These inhibitors are very toxic to the body as they are not specific, being able to inactivate any enzyme.
  • Reversible inhibitors can be divided into two groups: competitive and non-competitive. This division is based on the presence or absence of competition between the inhibitor and the substrate for the active center of the enzyme.

See more about enzymatic inhibition at brainly.com/question/13174512

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7 0
1 year ago
Cystic fibrosis (CF) is a recessive trait that causes a fatal lung disorder, with symptoms beginning in early childhood. A healt
Shalnov [3]

Answer:

1/4

Explanation:

Cystic fibrosis is a recessive disorder and therefore, is expressed only in homozygous recessive genotype. Let's assume that the allele "c" is responsible for the disease in the homozygous state. Since the couple already has a child with cystic fibrosis (cc), they both are heterozygous carriers for the disease.

The genotype of male and female each is "Cc". A cross between Cc x Cc gives progeny in the following phenotype ratio=1/4 diseased: 1/2 normal carriers: 1/4 normal. Therefore, the probability of getting a diseased child for them is 1/4.

6 0
3 years ago
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