2
Q:

Which best describes a tetrad?

A) A diploid cell B) Two gametes
C) Four chromatids D) A haploid cell

Answer:   C) Four chromatids



Explanation:

A tetrad is best described by Four chromatids. It is formed from two homologous chromosomes, each consisting of two chromatids in the first stage of meiosis called prophase1.

 

A_tetrad_is_made_up_of1562827273.jpg image

Subject: Biology
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Q:

Animals in which the cells are arranged in two embryonic layers are called ________.

A) Diploblastic B) Extoderm
C) Tripoblastic D) Endoderm
 
Answer & Explanation Answer: A) Diploblastic

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Q:

The female sex organs in a flower is the __________.

A) Zoospores B) stamen
C) pistil D) Chlorophyceae
 
Answer & Explanation Answer: C) pistil

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Q:

A healthy adult man has, on an average, ________ (in millions) of RBCs mm-3 of blood.

A) 5 - 5.5 B) 4 - 4.5
C) 3 - 3.5 D) 6 - 6.5
 
Answer & Explanation Answer: A) 5 - 5.5

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Q:

Muscles get tired when there is shortfall of ___________.

A) Lactic acid B) Na+ ions
C) ATP D) Sulphates
 
Answer & Explanation Answer: C) ATP

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Q:

Carica papaya is the scientific name of ___________.

A) Peepal B) Papaya
C) Tamarind D) Drumstick
 
Answer & Explanation Answer: B) Papaya

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Q:

__________________ is a drug or substance that makes you feel relaxed and makes your body work and react more slowly.

A) Antidote B) Analgesic
C) Antihistamine D) Depressant
 
Answer & Explanation Answer: D) Depressant

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Q:

Psidium guajava is the scientific name of ___________.

A) Guava B) Mango
C) Bamboo D) Jack fruit
 
Answer & Explanation Answer: A) Guava

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Q:

Which organ does detoxification and produces chemicals needed for digestion?

A) Salivary glands B) Pancreas
C) Thyroid gland D) Liver
 
Answer & Explanation Answer: D) Liver

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