4551/1 Inheritance Biology Paper 1 CHAPT ER 14: INHERITANCE 2003 2004 2005 2006 2007 2008 Question No. Question No. Question No. Question No. Question No. Question No. 6 5 5 5 2 2 YEAR 2003 1. Which of the fo llowi ng statements are true about double f ertilisation i n a plant ? I One mal e gamet e nuc le us fuse s wit h t he nu cl eu s of a n egg ce ll to form an embryo sac II Two ha pl oi d nuc lei fo rmed in t he ovul e fus e wi th two mal e gamet e nuc lei III One mal e gamet e nucleus fuse s with the female nucleus to form di pl oid zygote IV Two polar nuclei f use with one male nucl eus t o f or m the endosperm A I and II only C I, II and III only B III and IV only D II, III and IV only 2. Fi gu re 13 sh ows gen es in a pai r of homol ogous chr omosomes Which of the following statements regarding the homologous chromosomes are true? I Every trait is controlled by a pair of allele s II The chromosome p air controls five trait s II I One i s a maternal chromosome whil e t he ot her i s a paternal chromosome IV D, e, f, g and H ar e po ssible alleles wh ich ma y be f ound in the chromosome of a daughter cell after a mitotic division A I and IV only C I, II and IV only B II and III only D I, II, III and IV Answer To Sco re Jabatan Pel ajaran Perak 20 09®1 Figure 13
1. Which of the following statements are true about double fertilisation in a plant?I One male gamete nucleus fuses with the nucleus of an egg cell to form an
embryo sacII Two haploid nuclei formed in the ovule fuse with two male gamete nucleiIII One male gamete nucleus fuses with the female nucleus to form diploid
zygoteIV Two polar nuclei fuse with one male nucleus to form the endosperm
A I and II only C I, II and III onlyB III and IV only D II, III and IV only
2. Figure 13 shows genes in a pair of homologous chromosomes
Which of the following statements regarding the homologous chromosomes aretrue?
I Every trait is controlled by a pair of allelesII The chromosome pair controls five traitsIII One is a maternal chromosome while the other is a paternal chromosomeIV D, e, f, g and H are possible alleles which may be found in the chromosome
of a daughter cell after a mitotic division
A I and IV only C I, II and IV onlyB II and III only D I, II, III and IV
3. Identical twins are produced from the fertilisation of one sperm and one ovum.Which of the following twins is not the result of such fertilisation?
A C
B D
4. In pea plants, the allele for smooth-skinned seeds is dominant over the allele for wrinkled-skinned seeds. Two heterozygous plants are cross-bred.What is the chance of an offspring producing smooth-skinned seeds?A 25% C 75%B 50% D 100%
5. Figure 30 shows albinism in the pedigree of a family.
Albinism is controlled by a recessive allele, a. What are the genotypes of individual P and individual Q?
Individual P Individual Q
A Aa Aa
B AA Aa
C Aa aa
D AA aa
6. Figure 31 shows the results of blood group tests from donors P, Q, R and S.
Which of the following represent K, L, and M?K L M
A Nitrogenous base Phosphate group Deoxyribose sugar B Deoxyribose sugar Phosphate group Nitrogenous baseC Nitrogenous base Deoxyribose sugar Phosphate groupD Phosphate group Deoxyribose sugar Nitrogenous base
Answer To Score Jabatan Pelajaran Perak 2009®
I II III
A R R y y RRy y
B R Y r y R r Yy
C R Y r y RRy y
D YY r r r r YY
2. The diagram shows a DNA model built by a student.
3. The figure shows the karyotype of an individual.
The individual is aA normal male C Down's syndrome maleB normal female D Down's syndrome female
3. The allele for curly hair in human is dominant to the allele for straight hair. Aman with curly hair is heterozygous while his wife has straight hair. Theprobability of getting a child with straight hair is
A 1 C ½B ¾ D ¼
4. The diagram shows a change in the chromosome structure caused bymutation.
What type of mutation is this?A TranslocationB DeletionC DuplicationD Inversion
5. The following information refers to sickle cell anaemia.
• Sickle shaped red blood cells• Low haemoglobin content
Which of the folllowing activities can be carried out by a person who suffers fromsickle cell anaemia?
A Driving a car C Exercising activelyB Climbing a mountain D Driving
1. The figure shows a pair of homologous chromosomes. The alphabets representthe genes in the chromosomes
T and t representA alleles C phenotypeB genotype D linked genes
2. Which of he following traits was used in Mendel’sexperiments?
A Colour of leaf C Size of fruitB Number of seeds D Height of plant
3. The diagram shows a karyotype of a male suffering from a type of genetic disease.
The genetic disease suffered by the man is
A haemophilia C Down’s syndromeB Turner’s syndrome D Klinefelter’s syndrome
4. The figure shows the inheritance of two traits in pea plants.
The allele for smooth seed (S) is dominant to the allele for wrinkled seed.The allele for purple flower (S) is dominant to the allele for white flower.
2. What is the technique used to transfer genes from the DNA of one species to theDNA of another species?
A Cloning C Genetic engineeringB Dihybrid cross D Monohybrid cross
3. Diagram 18 shows the karyotype of an individual.
Which of the following shows the number of chromosome in a gamete producedby the
individual?
A 22 + Y C 44 + YB 22 + XY D 44 + X
4. A married couple has different rhesus Rh factors. Their first child is a Rh+ . Allthe subsequent pregnancies end with miscarriages.Determine the rhesus factors for the parents and the miscarriage foetus.
Father Mother Miscarriage foetus
A
B
C
D
Rh+
Rh+
Rh-
Rh-
Rh-
Rh-
Rh+
Rh+
Rh-
Rh+
Rh+
Rh-
5. The following information shows the alleles belonging to a pair of married couple.
Which of the following crosses produces male progeny who all have colour blindness?
1. Sara’s blood group is type B.Which blood groups can be recipients of Sara’s blood.
A. Types A and AB C. Types O and ABB. Types B and AB D. Types O and AB
2. Diagram 23 shows a pair of homologous chrosomes.P is a locus on thosehomologous chromosomes.What is P?A. Locus of dominant characteristicB. Locus of recessive characteristicC. Lokcus of genotype
D. Locus og gene Diagram 23
YEAR 2008
1. Blood group in humans is determined by three alleles, IA, IB and IO.What is the possible genotype for a person having a blood group B?
I IA IA III IB IO II IB IB IV IA IB
A. I and II C. I and IVB. II and III D. III and IV
2. Which genetic disorder is caused by a sex-linked gene?
A. Albinism C. Down’s syndromeB. Colour blindness D. Sickle-cell anaemia
