You can search the internet for my other English Medium article as well. Gujarat Biology and India Biology You can also give tests from there. Also got the more information about NEET BIOLOGY
NEET BIOLOGY
Biology for NEET
Biology Short Notes
Biology Test
CBSE/ BOARD Examination
DPP-4
1. If the factors responsible for pod shape and pod colour in a pea plant studied by Mendel to show inheritance of two genes were located closely on same chromosome, then which of the following would not have been explained?
(a) Law of dominance
(b) Law of segregation
(c) Law of independent assortment
(d) Both (b) and (c)
2. When two homozygous black and white andalusian fowls were crossed, the F₁ individuals appeared blue and on selfing produces black, blue and white fowl in the ratio of 1:2:1. This is an example of
(a) dominance
(b) incomplete dominance
(c) co-dominance
(d) pleiotropism.
3. If a cross between two individuals produces offspring with 50% dominant character (A) and 50% recessive character (a), the genotypes of parents are
(a) Aa x Aa
(b) Aa x aa
(c) AA x aa
(d) AA x Aa.
4. The F₂ ratio in a dihybrid cross is modified from 9:3:3:1 to 9:7. This is due to the effect of
(a) duplicate genes
(b) complementary genes
(c) supplementary genes
(d) epistatic genes.
5. Due to non-disjunction of chromosomes during spermato genesis, some sperms carry both sex chromosomes (22A + XY) and some sperms do not carry any sex chromosomes (22A+0). If these sperms fertilise normal eggs (22A+ X), what types of genetic disorders appear among the offspring?
(a) Klinefelter's syndrome and Turner's syndrome respectively
(b) Turner's syndrome and Klinefelter's syndrome respectively
(c) Down's syndrome and Turner's syndrome respectively
(d) Cri-du-chat syndrome and Down's syndrome respectively
6. Which of the following statements is not true for two genes that show 50% recombination frequency?
(a) The genes show independent assortment.
(b) The genes if present on same chromosome, undergo more than one crossovers in every meiosis.
(c) Genes may be present on different chromosomes.
(d) The genes are tightly linked.
7. Af the recombination frequencies of fruitfly between genes b (black body) and vg (vestigial wings) is 18%, (b) black body and cn (cinnabar eye) is 9% and cn (cinnabar eye) and vg (vestigial wings) is 9.5%. Identify the correct sequence of genes in fruitfly.
(a) cn, b and vg
(b) b, cn and vg
(c) vg, b and cn
(d) cn, vg and b
8. The holandric type of inheritance refers to transfer of traits from
(a) father to son
(b) father to grandson through his daughter
(c) mother to daughter
(d) father to granddaughter through his son.
9. What did Mendel conclude from dihybrid cross in pea plant?
(a) Inheritance of one pair of alleles does not interfere in the inheritance of other pair of alleles.
(b) Out of the two contrasting alleles, only one is able to express its effect in the individual.
(c) Two factors of a character keep their identity distinct and separate at the time of gamete formation.
(d) One trait of the character which did not appear in first generation must lie hidden or unexpressed in it.
10. The progenies of a colour blind woman and a normal man will be
(a) 100% colour blind girls and 100% carrier boys
(b) 100% colour blind boys and 50% carrier girls
(c) 100% colour blind boys and 100% carrier girls
(d) 50% colour blind boys and 50% carrier girls.
(a) Law of dominance
(b) Law of segregation
(c) Law of independent assortment
(d) Both (b) and (c)
2. When two homozygous black and white andalusian fowls were crossed, the F₁ individuals appeared blue and on selfing produces black, blue and white fowl in the ratio of 1:2:1. This is an example of
(a) dominance
(b) incomplete dominance
(c) co-dominance
(d) pleiotropism.
3. If a cross between two individuals produces offspring with 50% dominant character (A) and 50% recessive character (a), the genotypes of parents are
(a) Aa x Aa
(b) Aa x aa
(c) AA x aa
(d) AA x Aa.
4. The F₂ ratio in a dihybrid cross is modified from 9:3:3:1 to 9:7. This is due to the effect of
(a) duplicate genes
(b) complementary genes
(c) supplementary genes
(d) epistatic genes.
5. Due to non-disjunction of chromosomes during spermato genesis, some sperms carry both sex chromosomes (22A + XY) and some sperms do not carry any sex chromosomes (22A+0). If these sperms fertilise normal eggs (22A+ X), what types of genetic disorders appear among the offspring?
(a) Klinefelter's syndrome and Turner's syndrome respectively
(b) Turner's syndrome and Klinefelter's syndrome respectively
(c) Down's syndrome and Turner's syndrome respectively
(d) Cri-du-chat syndrome and Down's syndrome respectively
6. Which of the following statements is not true for two genes that show 50% recombination frequency?
(a) The genes show independent assortment.
(b) The genes if present on same chromosome, undergo more than one crossovers in every meiosis.
(c) Genes may be present on different chromosomes.
(d) The genes are tightly linked.
7. Af the recombination frequencies of fruitfly between genes b (black body) and vg (vestigial wings) is 18%, (b) black body and cn (cinnabar eye) is 9% and cn (cinnabar eye) and vg (vestigial wings) is 9.5%. Identify the correct sequence of genes in fruitfly.
(a) cn, b and vg
(b) b, cn and vg
(c) vg, b and cn
(d) cn, vg and b
8. The holandric type of inheritance refers to transfer of traits from
(a) father to son
(b) father to grandson through his daughter
(c) mother to daughter
(d) father to granddaughter through his son.
9. What did Mendel conclude from dihybrid cross in pea plant?
(a) Inheritance of one pair of alleles does not interfere in the inheritance of other pair of alleles.
(b) Out of the two contrasting alleles, only one is able to express its effect in the individual.
(c) Two factors of a character keep their identity distinct and separate at the time of gamete formation.
(d) One trait of the character which did not appear in first generation must lie hidden or unexpressed in it.
10. The progenies of a colour blind woman and a normal man will be
(a) 100% colour blind girls and 100% carrier boys
(b) 100% colour blind boys and 50% carrier girls
(c) 100% colour blind boys and 100% carrier girls
(d) 50% colour blind boys and 50% carrier girls.
===== Connecting With Me For More Knowledge Of Biology =====
Ans key
1. C, 2.B, 3.B, 4.B, 5.A, 6.D, 7.B, 8.A, 9.A, 10.C,
Download My App just search - Gujarat Biology NEET PLUS on google play store
Link 👇
NEET BIOLOGY
Biology for NEET
Biology Short Notes
Biology Test
CBSE/ BOARD Examination
MANISH MEVADA
M.Sc, M.Phil, B.Ed
GUJARAT BIOLOGY NEET
NEET MATERIAL IN GUJARATI
KNOWLEDGE ON THE WAY.
Please Do Not enter any sparm link in comment box