PU PRE-MEDICAL (PU-M) PAST PAPER 23-07-2023
PU Entry Test 5
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
Megaspore
Ovule
Egg
Ovary
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Explanation
An indehiscent integument megasporangium in the form of ovule is found in spermatophytes.
The ovule then forms the seed after fertilization
Ethmoid
Temporal
Parietal
Mandible
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Explanation
The mandible, or jaw bone, is the only movable bone of the skull
They are forming the temporomandibular joint with the temporal bone.
stem like
branching
crest like
leaf like
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Explanation
A foliose lichen is a lichen with flat , leaf-like lobes.
They are generally not firmly bonded to the substrate on which they grow.
It is one of the three most common growth forms of lichens.
structural
transport
contractile
regulatory
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Explanation
Hemoglobin is an example of a transport protein.
T ransport proteins are a class of proteins that facilitate the movement of molecules, and ions, within cells.
It is a transport protein found in red blood cells
They are responsible for transporting oxygen (O2) from the lungs to tissues throughout the body
And for transporting carbon dioxide (CO2 ) from tissues back to the lungs for exhalation.
May be at same locus
May not be at the same locus
At the same locus
At different locus
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Explanation
Alleles of a gene are located at the same locus on homologous chromosomes.
A locus refers to a specific location or position on a chromosome where a particular gene is located.
gall stones
pyrosis
anaema
jaundice
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Explanation
Gallstones, mainly cholesterol gallstone formation , result from several physiological events such as:
hepatic secretion of bile saturated with cholesterol nucleation of cholesterol monohydrate crystals in the gall bladder impaired emptying of gall bladder contents.
serine
choline
ethanolamine
lecithin
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Explanation
The term "phosphatidylcholine" is sometimes used interchangeably with "lecithin," although the two are different.
Choline is a component of phosphatidylcholine , which is a component of lecithin.
Transduction
Translation
Transformation
Replication
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Explanation
The transfer of naked genetic material from one cell to another that can alter the genetic makeup of the recipient cel l is termed Transformation.
In bacterial genetics, transformation refers to the process by which bacteria take up free DNA from their environment and incorporate it into their genome.
Margulis
Stanley
Schwartz
Whitaker
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Explanation
In 1935, the Tobacco mosaic virus (TMV) was crystallized by Wendell Meredith Stanley.
Stanley's work on TMV contributed significantly to the understanding of viruses
He earned him the Nobel Prize in Chemistry in 1946
3rd
12th
10th
14th
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Explanation
Almost all organs are completely formed by about 10 weeks after fertilization (which equals 12 weeks of pregnancy).
The exceptions are the brain and spinal cord, which continue to form and develop throughout pregnancy.
Most malformations ( birth defects ) occur during the period when organs are forming.
