Sexual Life Cycles

Question 1

No.of chromosome in dorsophila

Answer 1

4 sets of chromosome

Question 2

To study karyotype of somatic cells, cells are treated with to stimulate mitosis

Answer 2

Drugs

Question 3

Different homologs can be distinguished from one another by seeing

Answer 3

Centromere position, size and pattern of color bands produced after dying with chromatin-binding dye

Question 4

No. Of chromosome in dogs

Answer 4

39 set

Question 5

Gametophyte is haploid or diploid

Answer 5

Haploid

Question 6

Sporophyte is

Answer 6

Diploid

Question 7

Alternation of generation is seen

Answer 7

in plants and some algae

Question 8

In which type of organisms haploid is the only multicellular stage

Answer 8

Fungi, some protists and some algae

Question 9

In plant cells during cytokinesis —— is formed

Answer 9

Cell plate

Question 10

Sister chromatids are held together by

Answer 10

Cohesins

Question 11

Mating between two true breeding breeds

Answer 11

Hybridization

Question 12

Example of CODOMINANCE

Answer 12

MN blood grouping

Question 13

Tay Sachs disease about

Answer 13

Brain unable to metaboloize certain lipid due to the absence of certain enzyme

Question 14

In Tay Sachs heterozygous at organism level of dominance

Answer 14

Complete

Question 15

Multiple allele eg

Answer 15

ABO BLOOD GROUP

Question 16

Dominant alleles are more in no. In a population TRUE/FALSE

Answer 16

False

Question 17

When one gene define more than one traits

Answer 17

Pleiotropy

Question 18

When one gene effects the whether other gene would be expressed or not

Answer 18

Epistasis

Question 19

When one gene effects the whether other gene would be expressed or not

Answer 19

Epistasis

Question 20

Traits vary in a continuum

Answer 20

Quantative characters

Question 21

In disease where there is high intracellular Cl concentration due to a abnormal membrane protien

Answer 21

Cystic fibrosis

Question 22

Dominant disease leading to dwarfism

Answer 22

Achondroplasia

Question 23

Lethal disease provide symptoms at mid 40s lead to deterioration of nervous system

Answer 23

Huntington disease

Question 24

Multi factorial disorder

Answer 24

Heart, diabetes, cancer, schizophrenia, alcholism, bipolar

Question 25

Foetus tests in which fetal dna in mother's blood is tested(cell free DNA

Answer 25

Cell free DNA Tests

Question 26

Disease in which newborn can't metaboloize phenylalanine

Answer 26

PKU

Question 27

Sex signs begin in embryo after ----- of fertilization

Answer 27

2 months

Question 28

Gene at Y chromosome that leads to development of testes

Answer 28

SRY gene

Question 29

Autosome gene required for ovaries development

Answer 29

WNT4

Question 30

X linked disease leading to loss of muscle coordination

Answer 30

Duchenne muscular dystrophy

Question 31

X linked disease leading to absence of protein required for clotting

Answer 31

Hemophilia

Question 32

X gene that lead to formation of Barr body

Answer 32

XIST gene

Question 33

Max recombination frequency

Answer 33

50%

Question 34

Banans are

Answer 34

Triploid

Question 35

Wheat are

Answer 35

Hexaploid

Question 36

Strawberry are

Answer 36

Octoploid

Question 37

Four ways of chromosome structure alternation

Answer 37

Duplication, deletion, translocation, inversion

Question 38

Down syndrome

Answer 38

Trisomy 21

Question 39

Abnormal chromosome

Answer 39

Aneuploidy

Question 40

Knilefelter syndrome

Answer 40

XXY

Question 41

Turner's syndrome

Answer 41

X

Question 42

Replication of chromosomal dna begins with

Answer 42

Origins of replication

Question 43

Enzyme untwist dna near replication fork

Answer 43

Helicases

Question 44

Enzyme relieve strain due to helicases

Answer 44

Topoimerase

Question 45

E coli. Has ---- no . Of origins of replication

Answer 45

1

Question 46

Direction of replication

Answer 46

5' --> 3'

Question 47

Enzyme adds primer to DNA strand

Answer 47

Primase

Question 48

Enzyme adds neuclotides to DNA strand

Answer 48

DNA POL III

Question 49

Replace primer to DNA neucleotodes

Answer 49

DNA POL I

Question 50

Join replace DNA neuclotide to already one

Answer 50

DNA LIGASE

Question 51

System helps to repair dna

Answer 51

Nuclear excision system

Question 52

In eukaryotic cells chromosomal ends called

Answer 52

Telomeres

Question 53

Code in telomere

Answer 53

Ttaggg

Question 54

Enzyme lengthens telomere in Germany cells

Answer 54

Telomerase

Question 55

Telomere act as

Answer 55

Buffer

Question 56

Which protein first condense the dna

Answer 56

Condensin II

Question 57

Which protein secondly condense the dna

Answer 57

Condensin I

Question 58

Bead of dna

Answer 58

Nucleosome

Question 59

DNA between two nucleosome

Answer 59

DNA linker