E) Polygenic inheritance

Date: 2015-10-07; view: 491.

D) Mutation

C) Hetereosis

A) Dominance

D) 3:1

C) 2:1

B) 9:3:3:1

A) 1:2:1

D) On both the chromosomes of female

C) On any chromosome

B) Only when they are present on X-chromosome of female

A) Only when they are present on X-chromosome of male

D) Heterozygous

C) Homozygous

B) Dominant

A) Hybrid

D) Paramorphs

C) Alloci

D) Polygenic inheritance

C) Dominance

B) Segregation

A) Independent assortment

List B

The Darwin Theory.

1. Thesynthetic theory of evolution.

1. An organism with two unlike genes of a trait is called:

a) Homozygous

b) Heterozygous

c) Both of these

d) None of these

2. Mendel^,s second law is the law of:

3. Gametes of AaBb individual can be:

a) Aa, Bb

b) AB, ab, aB

c) AB, ab

d) AB, Ab, aB, ab

4. The contrasting pairs of factors in Mendelian crosses are called:

a) Multiple alleles

b) Allelemophs

5. An individual with two identical alleles is:

6. Dihybrid cross is related to the principle of:

a) Dominance

b) Independent assortment

c) Segregation

d) Purity of gametes

7 Recessive characters are expressed:

8. Mendel^'s law of independent assortment is based on F₂ ratio of:

9. The phenomenon of hiding the effect of one pair of genes by another pair is:

b) Epistasis

10. Define the phenomenon when gene has more than two alleles.

a) Multiple alleles.

b) Complementary genes.

c) Epistasis.

d) Polygenic inheritance.

e) Effect of position.

11. What does it mean effect of position?

a) It is the phenomena when the expression of one gene is depended of other not allelic gene.

b) It is the phenomena when one gene interferes with the expression of another.

c) It is the phenomena when a gene has more than two alleles.

d) While one gene may make only one protein, and other gene may make other protein the effects of those proteins usually interact.

12. Types of interaction of not allelic genes are:

a) Complete dominance

b) Over dominance

c) Codominant alleles

d) Epistasis.

e) Polygenic inheritance.

13. What does contain the information about synthesis of one polypeptide chain?

a) the molecule of DNA

b) nucleotide

c) triplet of nucleotides

d) gene

e) karyotype

14. What nitrogenous bases a molecule of RNA does contain?

a) adenine

b) cytosine

c) uracile

d) guanine

e) thymine

15. What nitrogenous bases a molecule of DNA does contain?

a) adenine

b) cytosine

c) uracile

d) guanine

e) thymine

16. How many pairs of nitrogenous bases are within one turn (whorl) of the double chain (or spiral) of the DNA?

a) 10

b) 15

c) 20

d) 100

e) 5

17. What nucleotide is complementary to cytosine?

a) Adenine

b) Cytosine

c) Uracil

d) Guanine

e) Thymine

18. What nucleotide is complementary to adenine?

a) Adenine

b) Cytosine

c) Uracil

d) Guanine

e) Thymine

19. Pyrimidine base that is present in RNA instead of thymine of DNA is:

a) uracil

b) cytosine

c) adenine

d) guanine

20. Nucleotide base that is present in DNA is absent in RNA is:

a) Adenine

b) Cytosine

c) Uracil

d) Guanine

e) Thymine

14. The process of synthesis of DNA is called:

a) replication

b) transcription

c) translation

d) animation

22. Transcription means the synthesis of:

a) DNA

b) Proteins

c) Lipids

d) RNA

e) ATP

23. Transfer of information from mRNA to a polypeptide chain is called:

a) animation

b) transmission

c) translation

d) transcription

24. Genetic code is

a) singlet

b) doublet

c) triplet

d) none of these

25. The process of translation is:

a) ribosome synthesis

b) protein synthesis

c) DNA synthesis

d) RNA synthesis

26. Which is not involved in protein synthesis:

a) transcription

b) initiation

c) elongation

d) termination

27. Characters are transferred from parents to progeny through:

a) DNA

b) RNA

c) protein

d) phosphlipid

28. Nucleic acids are made of:

a) nucleotides

b) nucleosides

c) amino acids

d) proteins

29. The quantity of hydrogen bonds between cytosine and guanine are:

a) 1

b) 2

c) 3

d) 4

30. RNA that picks up specific amino acid from the cellular pool for protein synthesis is:

a) tRNA

b) mRNA

c) rRNA

d) snRNA

a) 31. Protein synthesis in an animal cell takes place:

b) only in the cytoplasm

c) in the nucleus as well as in the cytoplasm

d) in cytoplasm as well as in mitochondria

e) on ribosomes attached to the nuclear envelope only

32. Termination codon is:

a) AUY

b) YUY

c) UAY

d) AAU

33. DNA sequence of ATTCGATG is transcribed as:

a) AAUCGAUG

b) UAAGCUAC

c) CAUCGAAU

d) GUAGCUUA

34. What is the biggest distance between genes within one chromosome?

a) 1 Morgan.

b) 10 Morgan.

c) 50 Morgan.

d) 1 mkm.

e) 1 nm.

35. What amount of groups of linked genes of organism?

a) Diploid number of chromosomes.

b) Haploid number of chromosomes.

c) Number of autosomes.

d) Number of sex chromosomes.

e) Number of autosomes and sex chromosomes.

36. What is the way of defining of distance between genes within a group of linked genes?

a) Defining the diploid number of chromosomes.

b) Defining haploid number of chromosomes.

c) Defining the probability of crossing over posterity.

d) Defining the probability of non crossing over posterity.

e) Defining the number of autosomes.

37. What does define the boundary of modificative variation?

a) Influence of genotype.

b) Influence of genotype and environment

c) Influence of histological development of species.

38. What variation is not inheritable?