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Which of the following cell organelles is absent in animal cells but present in a plant cell?

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Which of the following cell organelles does not contain DNA?
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Which of the following cell organelles is called the power house of the cells?


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Which of the following cell organelles contains RNA? 
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What is the site of ribosome in a living cell? 
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A chromosome consists of DNA and


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Golgi apparatus or simply Golgi complex is involved in the formation of

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What is a locus? 
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Sexual and asexual reproduction are alike in that __________. 
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A clone is the product of __________. 
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A karyotype is __________. 
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Fertilization produces __________. 
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Which, if any, of the following statements is true? 
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Which of the following is part of the life cycle called alternation of generations? 
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The sexual cycle of the diploid, multicellular algal genus Fucus involves __________.    
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A life cycle in which the only multicellular form is haploid is most typical of __________.    
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In sexually reproducing species, the chromosome number remains stable over time because __________ and __________ always alternate.    
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The egg (ovum) of a rabbit contains 22 chromosomes. How many chromosomes are in the somatic (body) cells of a rabbit? 
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How many pairs of autosomes do humans have? 
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Sister chromatids __________. 
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When we say that an organism is haploid, we mean that __________.    
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Which of the following is a function of mitosis in humans? 
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Somatic cells in humans contain __________ set(s) of chromosomes and are therefore termed __________. 
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Nearly all life cycles have both haploid and diploid phases. Usually, the transition from haploid to diploid takes place __________. 
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Which of the following results in cells that contain half the parental chromosome number? 
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At the end of telophase I of meiosis and the first cytokinesis, there are __________.
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What is the typical result when a diploid cell has completed meiosis? 
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Which of the following occurs during anaphase II?    
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Which of the following occurs during anaphase I?     
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Cytokinesis is the __________. 
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What is the function of meiosis? 
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Crossing over occurs during __________.    
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Which event occurs only during prophase I of the first meiotic division?    
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Which of the following occurs in meiosis, but NOT mitosis? 
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Which function makes meiosis lengthier and more complex than mitosis?    
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Which of the following contributes to genetic variation in sexually reproducing species? 
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Using the results of his experiments with pea plant crosses, Gregor Johnn Mendel discovered the

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Mendel developed his basic principles of heredity by

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In Mendel garden peas, the tall allele (T) is dominant over the dwarf allele (t) and the green pod allele is dominant (Y) over the yellow pod allele (y). What is the genotype of a heterozygous tall, homozygous green pod pea plant?

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Blastula is an embryo -


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From the ectoderm are formed -


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How many types of gametes does an individual with the AaBb genotype form:


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Which organelles are only found in plant cells?


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During meiosis, when does crossing over occur?


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The diploid chromosome number in a certain species of fish is 20. How many chromosomes would normally be found in bone cell of this fish?

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Is an individual development of an organism which begins from a fertilized ovum by sperm and zygote formed by fusion of a sperm and an ovum until death:

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Choose Sex Chromosome Disorder:


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Point mutation when –ATG– becomes –AG– is an example:

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What stage of development is absent in incomplete metamorphosis?


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Which animal has indirect development with complete metamorphosis?      
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Which of the following statements about complex life cycle is correct?
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Axostyle is found in protozoa: 
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Sucking adhesive disks is found in protozoa 
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Anterior apical complex for the host cell entering is found in protozoa
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Kinetoplast, which is the DNA inside the mitochondrion, is found in protozoa: 
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Locomotion organelles of Giardia lamblia:
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Locomotion organelles of Entamoeba histolytica: 
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Locomotion organelles of Balantidium coli:
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In the body of a sick person, a form of the causative agent of the African sleeping sickness is found: 
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In macrophages and monocytes of a sick person, a form of the causative agent of the cutaneous leishmaniasis is found: 
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Trypanosoma brucei, which causes African sleeping sickness, is transmitted by: 
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Plasmodium species, which cause malaria, are transmitted by: 
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Leishmania tropica, which causes cutaneous leishmaniasis, is transmitted by:    
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Which of the following hosts is the source of human infection with toxoplasmosis?
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Which of the following protozoa has fecal-oral mode of transmission via environmentally resistant cysts in excreted faeces, causing amoebic dysentery in human? 
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Which of the following protozoa forms non-motile spores - sporozoites for transmission to humans? 
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Which of the following protozoa is direct sexually transmitted, causing vaginitis in women and urethritis in men?  
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Which of the following vector-borne protozoa, transmitted by the bites of female Anopheles mosquitoes, can destroy human red blood cells, leading to cyclic extreme fever and death? 
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The larvae of which of the following parasitic flukes are attracted to skin secretions in snail-infested water and penetrate directly into human skin, in Africa? This urinary blood fluke can colonize the veins of urogenital system leading to an increased risk of bladder cancer.
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Which of the following flukes has the shape of a tube worm shape and is not a hermaphrodite?
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Cestodes have which of the following body shape: 
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Nematodes have which of the following body shape: 
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A non-segmented worm is found during a routine colonoscopy of an individual who reported having abdominal cramps, nausea and vomiting. This worm is most likely which of the following? 
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Eggs or larvae are passed in the faeces of one host and ingested with food/water by another. The mode of transmission is probably which of the following? 
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Infective hookworm larvae from the soil penetrate the skin and migrate through the tissues to the human intestine. The mode of transmission is probably which of the following?    
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Larval stages are taken up by blood-sucking arthropods or are undergo amplification in aquatic mollusks. The mode of transmission is probably which of the following?
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Encysted larvae in vertebrate animal’s meat are eaten by carnivores where adult worms develop and produce eggs. The mode of transmission is probably which of the following?    
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Microscopic examination of faeces detected round eggs with a 6-hooked oncosphere surrounded by a thick radially striated shell. Intestinal infection is probably which of the following? 
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Microscopic examination of faeces detected barrel-shaped eggs with distinct mucoid polar plugs at each end. Intestinal infection is probably which of the following?    
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Microscopic examination of faeces detected oval-shaped eggs with an outer protein mammillated coat. Intestinal infection is probably which of the following?    
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Microscopic examination of faeces detected elongated asymmetrical eggs, distinctly flattened on one side and containing larvae. Intestinal infection is probably which of the following?
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Microscopic examination of faeces detected oval eggs with an operculum on one end and a small knob on the opposite end. Intestinal infection is probably which of the following? 
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Infection with chlonorchiasis occurs when: 
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Infection with hepatic paragonimiasis occurs when:    
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Infection with echinococcosis and cysticercosis occurs when: 
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Infection with taeniasis occurs when: 
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Infection with diphyllobothriasis occurs when: 
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Infection with dracunculiasis occurs when: 
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Which of the following statements about geo-helminthes is correct?    
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Which of the following statements about viviparous is correct? 
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Who is the definitive host of helminth that causes echinococcosis, or hydatid disease?    
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Which of the following helminths has pulmonary migration of larvae in the life cycle? 
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Which of the following helminths has pulmonary migration of larvae in the life cycle? 
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Which of the following helminths larvae can infect humans by actively penetrating through the skin from the soil?


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Which of the following helminths larvae can form hydatid cysts in various organs (liver, lung, kidney, spleen or central nervous system) of a person?
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Which of the following helminths can cause intense perianal itching and insomnia? Scotch test of the perianal area shows the presence of microscopic eggs
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Which of the following helminths is transmitted through mosquitoe bites in Africa and causes elephantiasis - lymphatic filariasis with edema of the tissues of the legs and arms due to obstruction of the lymphatic fluid?
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Which of the following helminths forms skin blisters, from which a part of the female worm emerges, releasing the larvae upon contact with water?    
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Which of the following helminths is transmitted by ingestion of undercooked infected meat, especially pork, and forms tissue cysts containing spiral larvae in individual  fibers of  human skeletal muscles?
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What is the cardinal feature of tissue infection by parasitic worms? 
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