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Korolek [52]
4 years ago
14

Which of the following is true about the functions of rough endoplasmic reticulum (rough ER) and smooth endoplasmic reticulum (s

mooth ER)?
Biology
1 answer:
aalyn [17]4 years ago
7 0
Rough ER - protein synthesis, transport of proteins throughout the cell
Smooth ER - lipid synthesis and cell detoxification
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How many kingdoms of bacteria are ther?
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The scheme most often used currently divides all living organisms into five kingdoms: Monera (bacteria), Protista, Fungi, Plantae, and Animalia.

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A

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3 years ago
In man, two abnormal conditions, cataracts (C) in the eyes and excessive fragility (F) in the bones, seem to depend on separate
juin [17]

Complete question:

In man, two abnormal conditions, cataracts (C) in the eyes and excessive fragility (F) in the bones, seem to depend on separate dominant genes located on different chromosomes.  Normal vision and normal bones are recessive traits.  A man with cataracts and normal bones, whose father had normal eyes, married a woman free from cataracts but with fragile bones.  Her father had normal bones.  

1. What is the genotype of the man with cataracts and normal bones?

2. What is the genotype of the woman with normal vision and fragile bones?

3. What type of offspring might this couple expect?

Answer:

  1. Cc ff
  2. cc Ff  
  3. F1)  4/16 = 1/2 = 25% CcFf, cataracts and fragile bones

              4/16 = 1/2 = 25% Ccff, cataracts and normal bones

              4/16 = 1/2 = 25% ccFf, normal eyes and fragile bones

              4/16 = 1/2 = 25% ccff normal eyes, normal bones

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

Download pdf
3 0
3 years ago
The substance represented by scissor shown cutting the DNA is
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In DNA replication, enzymes play a major role.

Enzymes identify the starting point of replication, attach itself and then unwind the Deoxyribonucleotide acid DNA Strand to form the replication fork.

Enzyme Helicase unwind and breaks the hydrogen bond between the base pair, opening up the helix structure to form a template for the new strand.

DNA polymerase also play a major role, it synthesis new DNA by adding primer to the DNA sequence for replication to occur, they also proof read the copy of DNA Strand being made to avoid errors during replication and add nucleotide to the growing DNA strand.

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Clearly outline what differentiates Gram +ve bacteria from Gram -ve bacteria?​
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Gram positive bacteria have cell walls composed of thick layers of peptidoglycan. Gram positive cells stain purple when subjected to a Gram stain procedure. Gram negative bacteria have cell walls with a thin layer of peptidoglycan.

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