The type of gene interaction in which the effects of one gene override or mask the effects of other entirely different genes is called: a) linkage b) mutation c) pleitropy (pron: ply-ah-tropy) d) epistasis (pron: eh-pis-te-sis)

The type of gene interaction in which the effects of one gene override or mask the effects of other entirely different genes is called: a) linkage b) mutation c) pleitropy (pron: ply-ah-tropy) d) epistasis (pron: eh-pis-te-sis)
by

1 Answer

Answer :

ANSWER: D -- EPISTASIS
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Related questions

Which of the following laws best describes the statement: The members of an homologous (pron: ho-MOL-eh-gus) pair of genes are separated during meiosis (pron: my-O-sis) of reproductive cells so that each gamete (pron: GAM-eet) contains one of the alleles (pron: a-leels). Is it: a) law of segregation b) law of independent assortment c) law of filial (pron: FILL-ee-al) generation d) law of sorting

Description : Which of the following laws best describes the statement: The members of an homologous (pron: ho-MOL-eh-gus) pair of genes are separated during meiosis (pron: my-O-sis) of reproductive cells so that ... law of independent assortment c) law of filial (pron: FILL-ee-al) generation d) law of sorting

Last Answer : ANSWER: A -- LAW OF SEGREGATION

The condition in which there is a DECREASE in the number of white blood cells in humans is known as: a) leukocytosis (pron: lew-kO-sigh-toe-sis) b) leukopenia (pron: lew-kO-pea-nee-ah) c) leukemia (pron: lew-kee-me-ah) d) leukohyperia (pron: lew-kO-high-per-e-ah)

Description : The condition in which there is a DECREASE in the number of white blood cells in humans is known as: a) leukocytosis (pron: lew-kO-sigh-toe-sis) b) leukopenia (pron: lew-kO-pea-nee-ah) c) leukemia (pron: lew-kee-me-ah) d) leukohyperia (pron: lew-kO-high-per-e-ah)

Last Answer : ANSWER: B -- leukopenia

The tendency of a plant to grow toward light is called: a) photosynthesis b) photoinduction c) phototropism (pron: fo-tot-row-piz-em) d) photolysis (pron: fo-tol-eh-sis)

Description : The tendency of a plant to grow toward light is called: a) photosynthesis b) photoinduction c) phototropism (pron: fo-tot-row-piz-em) d) photolysis (pron: fo-tol-eh-sis)

Last Answer : ANSWER: C -- PHOTOTROPISM

Lengthening of long bones in humans occurs in a particular area of the bone. This area is called the: a) medullary canal b) cancellous bone c) periosteum (pron: per-E-ahs-tee-em) d) epiphysis (pron: eh-pif-eh-sis)

Description : Lengthening of long bones in humans occurs in a particular area of the bone. This area is called the: a) medullary canal b) cancellous bone c) periosteum (pron: per-E-ahs-tee-em) d) epiphysis (pron: eh-pif-eh-sis)

Last Answer : ANSWER: D -- Epiphysis

The vesicles formed via the process known as phagocytosis (pron: fag-eh-seh-toe-sis) are called: a) lysosomes (pron: lye-sah-somes: somes rhymes with homes) b) Golgi apparatus c) food vacuoles d) mitochondria (pron: my-toe-chon-dria)

Description : The vesicles formed via the process known as phagocytosis (pron: fag-eh-seh-toe-sis) are called: a) lysosomes (pron: lye-sah-somes: somes rhymes with homes) b) Golgi apparatus c) food vacuoles d) mitochondria (pron: my-toe-chon-dria)

Last Answer : ANSWER: C -- FOOD VACUOLES

Of the following, which mechanisms are important i the death of erythrocytes (pron: eh-rith-reh-sites) in human blood? Is it a) phagocytosis (pron: fag-eh-seh-toe-sis) b) hemolysis c) mechanical damage d) all of the above

Description : Of the following, which mechanisms are important i the death of erythrocytes (pron: eh-rith-reh-sites) in human blood? Is it a) phagocytosis (pron: fag-eh-seh-toe-sis) b) hemolysis c) mechanical damage d) all of the above

Last Answer : ANSWER: D -- all of the above

Sponges are included in which of the following phyla? a) Cnidaria (pron: nid-air-e-ah) b) Porifera c) Reptilia d) Foraminifera (pron: feh-ram-eh-nif-eh-rah)

Description : Sponges are included in which of the following phyla? a) Cnidaria (pron: nid-air-e-ah) b) Porifera c) Reptilia d) Foraminifera (pron: feh-ram-eh-nif-eh-rah)

Last Answer : ANSWER: B -- PORIFERA 

Octopus and squid belong to the class of molluscs known as: a) cephalopoda (pron: sef-eh-lah-pod-ah) b) bivalvia c) gastropoda (pron: gas-tro-pod-ah) d) polyplacophora (pron: poly-pla-so-for-ah)

Description : Octopus and squid belong to the class of molluscs known as: a) cephalopoda (pron: sef-eh-lah-pod-ah) b) bivalvia c) gastropoda (pron: gas-tro-pod-ah) d) polyplacophora (pron: poly-pla-so-for-ah) 

Last Answer : ANSWER: A -- CEPHALOPODA

When one gene pair hides the effect of the other unit, the phenomenon is referred to as: (1) Epistasis (2) Mutation (3) None of the options (4) Dominance

Description : When one gene pair hides the effect of the other unit, the phenomenon is referred to as: (1) Epistasis (2) Mutation (3) None of the options (4) Dominance

Last Answer : (1) Epistasis Explanation: Epistasis refers to the phenomenon in which one gene hides the effect of the other. In other word, it does not allow the other gene to express itself. This is counterpart of ... may be in one direction only meaning that ei-ther A hides the effect of B or vice versa.

When one gene pair hides the effect of the other unit, the phenomenon is referred to as: (1) Epistasis (2) Mutation (3) None of the options (4) Dominance

Description : When one gene pair hides the effect of the other unit, the phenomenon is referred to as: (1) Epistasis (2) Mutation (3) None of the options (4) Dominance

Last Answer : Epistasis

A gene pair hides the effect of another gene. The phenomenon is called (a) dominance (b) segregation (c) epistasis (d) mutation

Description : A gene pair hides the effect of another gene. The phenomenon is called (a) dominance (b) segregation (c) epistasis (d) mutation

Last Answer : (c) epistasis

Two non-allelic genes produces the new phenotype w(a) epistasis (b) polygene (c) non complementary gene (d) complementary gene.hen present together but fail to do so independently then it is called

Description : Two non-allelic genes produces the new phenotype when present together but fail to do so independently then it is called (a) epistasis (b) polygene (c) non complementary gene (d) complementary gene.

Last Answer : epistasis

Which of the following is the oldest period of tim lasting from the beginnings of the earth to approximately 570 million year ago? w) Precambrian x) Pleistocene (pron: ply-sto-sin) y) Miocene (pron: my-o-sin) z) Jurassic

Description : Which of the following is the oldest period of tim lasting from the beginnings of the earth to approximately 570 million year ago? w) Precambrian x) Pleistocene (pron: ply-sto-sin) y) Miocene (pron: my-o-sin) z) Jurassic

Last Answer : ANSWER: W -- PRECAMBRIAN

Most of the fungi commonly observed are members of this group of fungi, which includes toadstools, mushrooms and puffballs. This group of fungi is known as: a) Phycomycetes (pron: fI-kO-my-seats) b) Ascomycetes (pron: as-kO-my-seats) c) Basidomycetes (pron: beh-sid-E-O-my-seats) d) Plyocetes (pron: ply-O-seats)

Description : Most of the fungi commonly observed are members of this group of fungi, which includes toadstools, mushrooms and puffballs. This group of fungi is known as: a) Phycomycetes (pron: fI-kO-my-seats) b) Ascomycetes ... ) c) Basidomycetes (pron: beh-sid-E-O-my-seats) d) Plyocetes (pron: ply-O-seats)

Last Answer : ANSWER: C -- Basidomycetes

Fruit colour in squash is an example of (a) recessive epistasis (b) dominant epistasis (c) complementary genes (d) inhibitory genes.

Description : Fruit colour in squash is an example of (a) recessive epistasis (b) dominant epistasis (c) complementary genes (d) inhibitory genes.

Last Answer : (a) recessive epistasis

As mitosis (pron: mie-TOE-sis) begins, the structure in the nucleus that disappears is the: a) spindle b) nucleolus (pron: new-klee-O-lus) c) chromatid (pron: KROME-a-tid) d) centromere (pron: SEN-tro-meer)

Description : As mitosis (pron: mie-TOE-sis) begins, the structure in the nucleus that disappears is the: a) spindle b) nucleolus (pron: new-klee-O-lus) c) chromatid (pron: KROME-a-tid) d) centromere (pron: SEN-tro-meer)

Last Answer : ANSWER: B -- NUCLEOLUS

In studies of the human body, which of the following terms can also be used when referring to the pituitary gland? I it: a) thymus b) hypophysis (pron: hypo-fi-sis) c) pancreas d) none of the above

Description : In studies of the human body, which of the following terms can also be used when referring to the pituitary gland? I it: a) thymus b) hypophysis (pron: hypo-fi-sis) c) pancreas d) none of the above

Last Answer : ANSWER: B -- HYPOPHYSIS

Gluconeogenesis (pron: glue-ko-nee-o-gen-e-sis) occur in which organ?

Description : Gluconeogenesis (pron: glue-ko-nee-o-gen-e-sis) occur in which organ?

Last Answer : ANSWER: LIVER

Invagination by a cell membrane forming a vesicle around a solid particle is a: a) lysosome b) phagocytosis (pron: fag-o-sigh-toe-sis) c) pinocytosis (pron: pin-o-sigh-toe-sis) d) peroxisomes (pron: pay-rak-se-som)

Description : Invagination by a cell membrane forming a vesicle around a solid particle is a: a) lysosome b) phagocytosis (pron: fag-o-sigh-toe-sis) c) pinocytosis (pron: pin-o-sigh-toe-sis) d) peroxisomes (pron: pay-rak-se-som)

Last Answer : ANSWER: B -- PHAGOCYTOSIS

Bile has what function in digestion? a) emulsify lipids b) digest proteins c) gluconeogenesis (pron: glue-ko-nee-o-gen-e-sis) d) digest carbohydrates

Description : Bile has what function in digestion? a) emulsify lipids b) digest proteins c) gluconeogenesis (pron: glue-ko-nee-o-gen-e-sis) d) digest carbohydrates

Last Answer : ANSWER: A -- EMULSIFY LIPIDS

How may changes to genes that is mutation result in harmful beneficial or neutral effects to the organism?

Description : How may changes to genes that is mutation result in harmful beneficial or neutral effects to the organism?

Last Answer : Mutations are random changes so there is no way to predict what kind of effect they will have.

When a single gene influences more than one trait it is called (a) pseudodominance (b) pleiotropy (c) epistasis (d) none of these.

Description : When a single gene influences more than one trait it is called (a) pseudodominance (b) pleiotropy (c) epistasis (d) none of these.

Last Answer : (b) pleiotropy

Ethylene diamine tetraacetoacetate (pron: te-tra-a-see-tow-AS-e-tate) (EDTW) is often used for which of the following: w) Determine hardness of water x) Measure the amount of zinc in a solution. y) A preservative in foods z) All of the above

Description : Ethylene diamine tetraacetoacetate (pron: te-tra-a-see-tow-AS-e-tate) (EDTW) is often used for which of the following: w) Determine hardness of water x) Measure the amount of zinc in a solution. y) A preservative in foods z) All of the above

Last Answer : ANSWER: Z -- ALL OF THE ABOVE 

The phenomenon, in which an allele of one gene suppresses the activity of an allele of another gene, is known as (a) epistasis (b) dominance (c) suppression (d) inactivation

Description : The phenomenon, in which an allele of one gene suppresses the activity of an allele of another gene, is known as (a) epistasis (b) dominance (c) suppression (d) inactivation

Last Answer : (a) epistasis

The disappearance of the dinosaurs also marks the end of which geological era? w) Precambrian x) Cambrian y) Mesozoic (pron: mez-ah-zo-ik) z) Cenozoic (pron: see-nah-zo-ik)

Description : The disappearance of the dinosaurs also marks the end of which geological era? w) Precambrian x) Cambrian y) Mesozoic (pron: mez-ah-zo-ik) z) Cenozoic (pron: see-nah-zo-ik)

Last Answer : ANSWER: Y -- MESOZOIC

Which of the following terms is used to describe the appearance of a mineral in transmitted light? Is it: w) diaphaneity (pron: die-ah-fah-na-ah-tee) x) translucence y) opaqueness z) porosity

Description : Which of the following terms is used to describe the appearance of a mineral in transmitted light? Is it: w) diaphaneity (pron: die-ah-fah-na-ah-tee) x) translucence y) opaqueness z) porosity

Last Answer : ANSWER: W -- DIAPHANEITY 

The boiling point of normal paraffinic (pron: pair-ah-FIN-ik) hydrocarbons increases with the number of carbon atoms per molecule. What is the smallest number of carbon atoms a normal paraffinic hydrocarbon can have and still be a liquid at room temperature (70-75 degrees Fahrenheit) and 1 atmosphere pressure.

Description : The boiling point of normal paraffinic (pron: pair-ah-FIN-ik) hydrocarbons increases with the number of carbon atoms per molecule. What is the smallest number of carbon atoms a normal paraffinic ... and still be a liquid at room temperature (70-75 degrees Fahrenheit) and 1 atmosphere pressure.

Last Answer : ANSWER: FIVE

Which of the following minerals is a source of iro w) Bauxite (pron: box-ite) x) Hematite (pron: he-ma-tite) y) Malachite (pron: mal-ah-kite) z) Galena (pron: ga-lee-nah)

Description : Which of the following minerals is a source of iro w) Bauxite (pron: box-ite) x) Hematite (pron: he-ma-tite) y) Malachite (pron: mal-ah-kite) z) Galena (pron: ga-lee-nah)

Last Answer : ANSWER: X -- HEMATITE

When a wound occurs in humans, the platelets in th blood activate a substance which starts the clotting process. The substance which starts the clotting is: a) adenosine (pron: ah-den-ah-seen) b) histamine c) lecithin (pron: less-ah-thin) d) thrombin

Description : When a wound occurs in humans, the platelets in th blood activate a substance which starts the clotting process. The substance which starts the clotting is: a) adenosine (pron: ah-den-ah-seen) b) histamine c) lecithin (pron: less-ah-thin) d) thrombin

Last Answer : ANSWER: D -- Thrombin

Pedocal (pron: ped-eh-kal) soils are usually found to have developed in: w) forests x) swamps y) grasslands z) jungles

Description : Pedocal (pron: ped-eh-kal) soils are usually found to have developed in: w) forests x) swamps y) grasslands z) jungles

Last Answer : ANSWER: Y -- GRASSLANDS

On the Phanerozoic (pron: fan-eh-reh-zO-ik) time scale, which of the following geologic periods occurred approximately 500 to 570 million years ago? Is it: w) Cambrian x) Ordovician (pron: ord-eh-vish-en) y) Carboniferous z) Silurian

Description : On the Phanerozoic (pron: fan-eh-reh-zO-ik) time scale, which of the following geologic periods occurred approximately 500 to 570 million years ago? Is it: w) Cambrian x) Ordovician (pron: ord-eh-vish-en) y) Carboniferous z) Silurian

Last Answer : ANSWER: W -- CAMBRIAN

On the Phanerozoic (pron: fan-eh-row-zo-ick) Time Scale, which of the following geologic periods occurred approximately 395 to 430 million years ago? Is it: w) Jurassic (pron: ju-ras-ick) x) Permian y) Carboniferous z) Silurian

Description : On the Phanerozoic (pron: fan-eh-row-zo-ick) Time Scale, which of the following geologic periods occurred approximately 395 to 430 million years ago? Is it: w) Jurassic (pron: ju-ras-ick) x) Permian y) Carboniferous z) Silurian

Last Answer : ANSWER: Z -- SILURIAN

On the Phanerozoic (pron: fan-eh-reh-zO-ik) Time Scale, which of the following geologic periods occurred approximately 225 to 280 million years ago? Is it: w) Jurassic x) Permian y) Carboniferous z) Silurian

Description : On the Phanerozoic (pron: fan-eh-reh-zO-ik) Time Scale, which of the following geologic periods occurred approximately 225 to 280 million years ago? Is it: w) Jurassic x) Permian y) Carboniferous z) Silurian

Last Answer : ANSWER: X -- PERMIAN

What is the primary CONSTITUENT of human bones? w) Calcium sulfate x) Calcium carbonate y) Hydroxyapatite (pron: high-drox-ee-ap-eh-tite) z) Chloroapatite (pron: klor-o-ap-eh-tite)

Description : What is the primary CONSTITUENT of human bones? w) Calcium sulfate x) Calcium carbonate y) Hydroxyapatite (pron: high-drox-ee-ap-eh-tite) z) Chloroapatite (pron: klor-o-ap-eh-tite)

Last Answer : ANSWER: Y -- HYDROXYAPATITE 

Calciferol (pron: kal-sif-eh-rol) is the common name of what vitamin?

Description : Calciferol (pron: kal-sif-eh-rol) is the common name of what vitamin?

Last Answer : ANSWER: VITAMIN D

The loss of water of crystallization from a hydrat when exposed to air is termed: w) efflorescence (pron: eh-floor-es-ence) x) deliquescence (pron: del-i-kwes-ence) y) quiescence (pron: kwi-es-ence) z) anhydrogenation

Description : The loss of water of crystallization from a hydrat when exposed to air is termed: w) efflorescence (pron: eh-floor-es-ence) x) deliquescence (pron: del-i-kwes-ence) y) quiescence (pron: kwi-es-ence) z) anhydrogenation

Last Answer : ANSWER: W -- EFFLORESCENCE

Which one of the following is NOT a vitamin? w) ascorbic acid x) niacin (pron: nI-eh-sen) y) trypsin (pron: trip-sen) z) riboflavin (pron: rye-bow-fla-vin)

Description : Which one of the following is NOT a vitamin? w) ascorbic acid x) niacin (pron: nI-eh-sen) y) trypsin (pron: trip-sen) z) riboflavin (pron: rye-bow-fla-vin)

Last Answer : ANSWER: Y -- TRYPSIN

Which of the following terms describes the study o animal behavior based on comparisons, the observation of patterns, and the consideration of environmental adaptations? Is it: a) ethology (pron: eh-thol-eh-gee) b) evisceration (pron: eh-vis-eh-ray-shun) c) promotorism d) sociology

Description : Which of the following terms describes the study o animal behavior based on comparisons, the observation of patterns, and the consideration of environmental adaptations? Is it: a) ethology (pron: eh-thol-eh-gee) b) evisceration (pron: eh-vis-eh-ray-shun) c) promotorism d) sociology

Last Answer : ANSWER: A -- ETHOLOGY

Which of the following is a term for mononuclear, granulocytic white blood cells that produce immunoglobulins? a) lymphocytes b) platelets c) erythrocytes (pron: eh-rith-reh-sites) d) none of these

Description : Which of the following is a term for mononuclear, granulocytic white blood cells that produce immunoglobulins? a) lymphocytes b) platelets c) erythrocytes (pron: eh-rith-reh-sites) d) none of these

Last Answer : ANSWER: A -- LYMPHOCYTES

Which of the following refers to the term -- tracheotomy (pron: tray-key-ot-eh-me)? a) an electrical determination of the flow rate of air through the trachea b) an incision of the trachea c) the removal of the trachea due to gross cancerous tumor formation d) none of these

Description : Which of the following refers to the term -- tracheotomy (pron: tray-key-ot-eh-me)? a) an electrical determination of the flow rate of air through the trachea b) an incision of the trachea c) the removal of the trachea due to gross cancerous tumor formation d) none of these

Last Answer : ANSWER: B -- AN INCISION OF THE TRACHEA

Which of the following terms relates to the mating of genetically-related individuals ("blood relatives")? a) familialism (pron: feh-mil-yel-ism) b) kinship genetics c) consanguinity (pron: kon-sang-gwin-eh-tee) d) none of these

Description : Which of the following terms relates to the mating of genetically-related individuals ("blood relatives")? a) familialism (pron: feh-mil-yel-ism) b) kinship genetics c) consanguinity (pron: kon-sang-gwin-eh-tee) d) none of these

Last Answer : ANSWER: C -- CONSANGUINITY

Which two of the following four bases in DNA are pyrimidine (pron: pie-rim-eh-den) bases? a) cytosine b) thymine c) adenine d) guanine (pron: gwa - neen)

Description : Which two of the following four bases in DNA are pyrimidine (pron: pie-rim-eh-den) bases? a) cytosine b) thymine c) adenine d) guanine (pron: gwa - neen)

Last Answer : ANSWER: A and B -- CYTOSINE and THYMINE

Sharks are: a) amphibians b) bony fish c) cartilaginous fish (pron: kart-el-aj-eh-nes) d) reptiles

Description : Sharks are: a) amphibians b) bony fish c) cartilaginous fish (pron: kart-el-aj-eh-nes) d) reptiles

Last Answer : ANSWER: C -- CARTILAGINOUS FISH

Name a pyrimidine (pron: pie-rim-eh-den) base.

Description : Name a pyrimidine (pron: pie-rim-eh-den) base.  

Last Answer : ANSWER: THYMINE or CYTOSINE or URACIL 

Melatonin (pron: mel-eh-toe-nin) is produced by the: a) skin b) pineal gland c) liver d) pituitary gland

Description : Melatonin (pron: mel-eh-toe-nin) is produced by the: a) skin b) pineal gland c) liver d) pituitary gland

Last Answer : ANSWER: B -- PINEAL GLAND

The several types of white blood cells are sometime collectively referred to as: a) erythrocytes (pron: eh-rith-row-cites) b) leukocytes (pron: lew-kah-cites) c) erythroblasts (pron: eh-rith-rah-blast) d) thrombocytes (pron: throm-bow-cites)

Description : The several types of white blood cells are sometime collectively referred to as: a) erythrocytes (pron: eh-rith-row-cites) b) leukocytes (pron: lew-kah-cites) c) erythroblasts (pron: eh-rith-rah-blast) d) thrombocytes (pron: throm-bow-cites)

Last Answer : ANSWER: B -- leukocytes 

A lake which has high nutrient availability is: a) oligotrophic (pron: all-i-go-tro-fik) b) eutrophic (pron: you-tro-fik) c) mesotrophic (pron: mez-eh-tro-fik)

Description : A lake which has high nutrient availability is: a) oligotrophic (pron: all-i-go-tro-fik) b) eutrophic (pron: you-tro-fik) c) mesotrophic (pron: mez-eh-tro-fik)

Last Answer : ANSWER: B -- eutropHic

The name of the ductless glands which secrete thei product into the circulatory system are: a) exocrine (pron: ek-seh-kren) b) apocrine (pron: ap-eh-kren) c) holocrine (pron: hoe-leh-kren) d) endocrine (pron: en-deh-kren)

Description : The name of the ductless glands which secrete thei product into the circulatory system are: a) exocrine (pron: ek-seh-kren) b) apocrine (pron: ap-eh-kren) c) holocrine (pron: hoe-leh-kren) d) endocrine (pron: en-deh-kren)

Last Answer : ANSWER: D -- ENDOcrine

The per capita birth rate of a population is known as its: w) mortality x) natality (pron: nay-tal-eh-ty) y) population density z) carrying capacity

Description : The per capita birth rate of a population is known as its: w) mortality x) natality (pron: nay-tal-eh-ty) y) population density z) carrying capacity

Last Answer : ANSWER: X -- NATALITY

Two dominant nonallelic genes are 50 map units apart. The linkage is (a) cis type (b) trans type (c) complete (d) absent/incomplete.

Description : Two dominant nonallelic genes are 50 map units apart. The linkage is (a) cis type (b) trans type (c) complete (d) absent/incomplete.

Last Answer : (d) absent/incomplete.