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4 years ago

The diagnostic term fifth disease causes a slight red skin flush similar to:

2 answers:

6 0

The diagnostic term fifth disease causes a slight red skin flush similar to 3 day measles-rubella. The fifth disease is a mild rash illness caused by parvovirus B19, usually more common to children than in adults. The disease spreads through respiratory secretions such as saliva, sputum, or nasal mucus, when an infected person coughs or sneezes.

natali 33 [55]4 years ago

6 0

Answer:

Scarlet fever

Explanation:

The fifth disease is known as erythema infectious which causes the following –

a) Red patches on the cheek of the child

b) Rash on the limbs and trunk

c) Some common cold symptoms such as running nose, sore throat, headache etc.

d) Is communicable and can spread through secretions like saliva etc.

The rashes on the body are very similar to the fifth disease symptoms such as rashes, sore throat etc., caused in scarlet fever. Scarlet fever is caused by bacteria, Streptococcus pyogenes.

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Of the nucleotide sequence on one side of a DNA molecule is CCTAGCT, then the sequence on the complementary strand of DNA will b

riadik2000 [5.3K]

Answer:

GGATCGA

Explanation:

This question portrays what occurs during DNA replication in which nucleotide sequences that are complementary to the template strand are synthesized. The DNA molecule consists of two long polynucleotide chains composed of four nucleotide subunits held together by hydrogen bonds. Each of the chain is known as a DNA strand.

In the DNA, base portions are paired together in an hydrogen bonding using the complementary base pairing rule. Complementary base pairing is the phenomenon where DNA Guanine always binds to Cytosine in an hydrogen bonding while Adenine binds to Thymine in the same manner i.e. A-T, G-C. The complementary base pairing that binds nucleotide bases in DNA is responsible for the double-helical structure of the DNA.

Hence, in a DNA molecule with nucleotide sequence CCTAGCT, a complementary strand of DNA will have the nucleotide sequence GGATCGA.

4 0

3 years ago

Organisms that have two different alleles for a particular trait are said to be ______

tigry1 [53]

Answer: Heterozygous

6 0

3 years ago

The type of learning that occurs when a stimulus produces a particular response because it is associated with a positive or nega

tatyana61 [14]

Classical conditioning or Pavlovian conditioning. An example which is frequently given for this type of conditioning is the stimulus which is often associated with Ivan Pavlov and his dogs. An important aspect that is associated with this type of learning or conditioning is that the response becomes automatic or reflexive.

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4 years ago

8. In the 1940s, the scientist J.B.S. Haldane linked many human red blood

nadya68 [22]

Answer:

b. The individual's' genetic composition

Explanation:

Natural selection is an occurrence in nature in which organisms with genes that have mutated to adapt to certain ailments, survive better than their mates. J.B.S Haldane made a hypothesis that this phenomenon of natural selection accounted for why people in Africa had developed resistance to malaria. Their hemoglobin, proteins, and other compounds that are necessary for the function of the red blood cells had been modified so that they would not easily be infiltrated by malaria parasites.

A.C. Allison confirmed this in his experiment which showed that people who had sickle cell mutations in the gene, beta hemoglobin were mostly found in regions where malaria was prevalent. Their genes had also been modified such that they were resistant to malaria.

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3 years ago

Which statement directly describes the cells produced by meiosis

kogti [31]

Answer:

The statement 'the genetic material of the original cell is divided among the new cells' describes how cells are produced in meiosis process.

Explanation:

In meiosis a single cell is divided into twice to form four cells and it contains the original half amount of 'genetic information'. In meiosis, the two cells are called daughter cells are produced, and each identical cells to the parent cell meiosis are produced four haploid cells and mitosis are produced two diploid cells.

The meiosis cell division is to reduces the number of 'chromosomes' in the parent cell by its half portion and also they produce four gamete cells. In this process they required to produce 'eggs and sperm' cells for the sexual reproduction .It is the main aim to make a daughter cells with same half so many 'chromosomes' as the starting cell.

4 0

4 years ago