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WorksheetsBIO CDF 24DEC
Total questions: 35
Worksheet time: 19mins
The study of the pattern of inheritance of characters from parents to offspring is called _ _ _ _ _
STATISTICS
GENETICS
ELECTRONICS
NOMENCLATURE
The heredity units are called _ _ _ _ _
DNA
RNA
GENES
MUTATION
The transmission of characters from parent to their offsprings is known as _ _ _ _ _
HEREDITY
GENETICS
VARIATION
MODERN GENETICS
Clones are those organisms which are the _ _ _ _ _ copies of one another
HYDROGEN
NITROGEN
OXYGEN
CARBON
Paired condition of chromosomes is known as _ _ _ _ _
HAPLOID
RNA
DIPLOID
DNA
Unpaired condition of chromosomes is known as _ _ _ _ _
DNA
HAPLOID
RNA
DIPLOID
_ _ _ _ _ in sexually reproducing organisms are caused due to the following factors like environment, crossing over and recombination of genes and mutation.
GENETICS
INHERITENCE
VARIATION
Variation in sexually reproducing organisms are caused due to the following factors like _ _ _ _ _, _ _ _ _ _ and recombination of _ _ _ _ _ and _ _ _ _ _
ENVIRONMENT
CROSSING OVER
GENES
MUTATION
_ _ _ _ _ and _ _ _ _ _ are the genetic material in all organisms.
DNA
RNA
PLASMA
HAEMOGLOBIN
The first study of inheritance was done by _ _ _ _ _ on _ _ _ _ _
GJ MENDEL,PEA
GJ MENDEL,FLOWER
TH MORGAN,PEA
TH MORGAN,FLOWER
father of genetics is _ _ _ _ _
TH MORGAN
CHARLES DARWIN
THEODOR SCHWANN
GJ MENDEL
father of modern/experimental genetics is _ _ _ _ _
THEODOR SCHWANN
CHARLES DARWIN
TH MORGAN
GJ MENDEL
_ _ _ _ _: states that allele pairs separate or segregate during gamete formation, and randomly unite at fertilization.
LAW OF DOMINANCE
LAW OF SEGREGATION
LAW OF INDEPENDENT ASSORTMENT
MENDEL'S LAW OF SEGREGATION
_ _ _ _ _: states that one of the factors for a pair of inherited traits will be dominant and the other recessive, unless both are recessive.
LAW OF DOMINANCE
LAW OF SEGREGATION
MENDEL'S THIRD LAW
MENDEL'S LAW OF SEGREGATION
_ _ _ _ _: states that allele pairs separate during the formation of gametes. This means that traits are transmitted to offspring independently of one another.
LAW OF DOMINANCE
LAW OF INDEPEDENT ASSORTMENT
LAW OF SEGREGATION
MENDEL'S LAW OF INDEPEDENT ASSORTMENT
In _ _ _ _ _ (only one contasting character is considered) When tall peat plants are crossed with short pea plants then in F1 generation only tall plants. were obtained.
MONOHYBRID CROSS
DIHYBRID CROSS
TRIHYBRID CROSS
TETRAHYBRID CROSS
In Monohybrid Cross (only one contasting character is considered) When tall peat plants are crossed with short pea plants then in F1 generation only _ _ _ _ _ were obtained.
SHORT PLANTS
TALL PLANTS
In F2 generation all plants are not tall but _ _ _ _ _ of them are short indicating that both tall and short traits were inherited in F1 but only tall trait was expressed due to dominance.
ONE HALF
TWO QUATER
ONE QUATER
TWO HALF
In F2 generation all plants are not tall but one quarter of them are short indicating that _ _ _ _ _ traits were inherited in F1 but only tall trait was expressed due to dominance. Phenotype ratio: 3:1 Genotype ratio: 1:2:1
TALL
SHORT
BOTH A n B
NONE
Phenotype ratio: _ _ _ _ _
1:3
1:2:1
9:3
3:1
Genotype ratio:_ _ _ _ _
1:3
1:2:1
1:3:1
3:1
In _ _ _ _ _ tall plant with round seeds were crossed with short plants with wrinkled seeds.
MONOHYBRID
DIHYBRID
TRIHYBRID
TETRAHYBRID
In Dihybrid cross tall plant with _ _ _ _ _ were crossed with short plants with _ _ _ _ _.
ROUND SEEDS,ROUND SEEDS
WRINKLED SEEDS,WRINKLED SEEDS
ROUND SEEDS,WRINKLED SEEDS
WRINKLED SEEDS,ROUND SEEDS
In F1 tall plants with _ _ _ _ _ seeds were obtained. On selfing these F1 plants with F2 produced Phenotype ratio.
ROUND
WRINKLED
In F1 tall plants with round seeds were obtained. On selfing these F1 plants with F2 produced Phenotype ratio: _ _ _ _ _ .
3:3:3:1
9:3:9:1
1:3:3:9
9:3:3:1
In humans, sex is determined by the inheritance of the paternal sex chromosome. Inheritance of a paternal _ _ _ _ _ chromosome produces a female, while inheritance of a _ _ _ _ _ chromosome produces a male.
X,Y
X,X
Y,Y
Y,X
In humans, sex is determined by the inheritance of the paternal sex chromosome. Inheritance of a paternal X' chromosome produces a _ _ _ _ _ .
MALE
FEMALE
In humans, sex is determined by the inheritance of the paternal sex chromosome. Inheritance of a paternal X' chromosome produces a female , while inheritance of a Y' chromosome produces a _ _ _ _ _.
MALE
FEMALE
The sources of variation are _ _ _ _ _ recombination.
DNA
RNA
MUTATION
GENETIC
_ _ _ _ _ is the process by which the sex of a person is determined.
SEX DETERMINATION
TRAITS DETERMINATION
GENES DETERMINATION
MUTATION DETERMINATION
All human chromosomes are _ _ _ _ _ .
PAIRED
NOT PAIRED
22 pairs are called _ _ _ _ _
HETEROSOMES
HOMOSOMES
AUTOSOMES
CHROMOSOMES
Sex chromosomes are _ _ _ _ _
ALLESOMES
HETERSOMES
HOMOSOMES
ALLOSOMES
Women have a _ _ _ _ _ chromosomes
XY
YX
XX
YY
Men have a _ _ _ _ _ chromosomes
YX
XY
XX
YY
