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Quiz 63
Mdcat-past-papers - UHS Quiz
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Board: UHS |
1241. Structures found in different species which are believed to have a common evolutionary origin are called:
Homologous
Analogous
Vestigial
fossilized
1242. Process by which unrelated species evolve to functionally resemble each other is called:
Convergent evolution
Divergent Evolution
Co-evolution
Parallel Evolution
1243. Which of the following shows evidences from evolution through molecular biology:
Development of bronchial arches in vertebrate embryo
Distribution of species
Comparison of genes and proteins in different species
study of vestigial organs
1244. Organs specialized to perform different functions but structurally alike are:
Analogous organs
Homologous organs
autologous organs
anelogous organs
1245. The actual or preserved remains of the organisms that lived in the ancient past are called:
fossils
impression
ancient prints
ancient cast
1246. Divergent evolution produces:
Vital organs
homologous organs
Vestigial organ
Analogous organs
1247. Which of the following type of organs are supposed to be functional in ancestral species rather than in present day species:
Vestigial organs
Analogous organs
Homologous organs
Embryonic
1248. Which of the following is not an example of disuse of organs?
Snake legs
Muscle atrophy
Shedding of milk teeth
Movement of ear
1249. According to the biogenetic law of Ernst Haeckel:
There is survival of the fittest
There is use and disuse of organs
Phylogeny recapitulates ontogeny
Ontogeny recapitulates phylogeny
1250. The sex of individuals of next generation always depends on one of the parents who is:
Heterozygotic
Homozygotic
Isogametic
isomorphic
1251. When a gene pair at one locus interacts with another gene at another locus,the interactions is called:
Dominance
Multiple alleles
Pleiotropy
epistasis
1252. When a single gene affects two or more traits, the phenomenon is called:
Epistasis
Pleitropy
Dominance
Over Dominance
1253. In men ,sex-determination depends upon the nature of:
Heterogametic male
Homogametic male
Heterogametic female
Homogametic male
1254. Pure breeding lines of pea were taken regarding seed shape -round and wrinkled and were crossed with no intermediate b/w parents.All offspring found to be round. These results show:
Co-dominance
Incomplete Dominance
dominance over recessive
Over-Dominance
1255. The condition in which the heterozygote has a phenotype intermediate b/w contrasting homozygous parents is called as:
Dominance
Incomplete dominance
Co-dominance
Over-Dominance
1256. Locus stands for
Position of gene on homologous chromosome
Regions of chromosome
Close regions of same chromosome
Position of an allele within a DNA molecule
1257. Chance of a Cross over between two loci is directly proportional to their
thickness
width
length
distance
1258. Which of the following is multiple allelic character?
Color of flower in pea plant
Shape of seed in pea plant
blood group of human being
Length of stem in pea plant
1259. When two or more alleles do not show complete dominance or both the alleles are expressing independently In heterozygote condition , such a condition is called
Complete Dominance
Over Dominance
Co Dominance
Incomplete Dominance
1260. To study the sex linkages in the drosophila , Morgan mated white eyed males with wild type red eyed female, what will be the phenotype of offspring
All red eyed males and females
Red eyed females and white eyed males
White eyed females and red eyed males
All white eyed females and males
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