Respuesta :
In both comparisons gene B is changing while gene A and C are same.
What is gene ?
The chromosomes in the nucleus of cells have precise sites where genes are ordered sequentially on DNA sequences.
What is genotype ?
It refers to an organism's entire gene pool and hence describes an organism's genetic make-up. The phrase can also be used more specifically to describe to a gene's alleles, or variant versions, that an organism carries.
The statement that is false is ---------- Option D, Alleles at 2 genetic markers that are located on different chromosomes will always be inherited together in the offspring unless crossing over occurs.
If alleles at 2 genetic markers or genes are on different chromosomes then they will be inherited independently and will not show crossing over. Crossing over occurs when alleles of 2 genes are present on 1 Chromosome. If genes are present on different chromosomes then no crossing over occurs as the genes are not linked so will be inherited independently of each other.
Others are correct a Recombination frequency of 0 (0%) means complete linkage and alleles of 2 genes will be inherited together. And if recombination frequency is 50% or 0.5 and greater than it again no crossing over will occur and will be inherited together. If 2 markers are present on same chromosome so they may or may not show crossing over depending on the distance between them.
The genotypes that are recombinant are ------ Option D, it is impossible to tell from the information given
To find out recombinants inheritance pattern of genes in EeFf is required i.e. It's parental types. If parents were EEFF and eeff then recombinants Genotype will be Ef, eF. And if Ef eF then recombinants will be EF, ef.
The gene that is in mid -------- Option 1, B
Compare parental with DCOs.
Parental ---- maximum frequency ------ ABC/abc = 404 ; abc/abc = 405
DCOs ------- least frequency----- AbC/abc = 5 ; aBc/abc = 5
1) ABC -------- AbC
2) abc ------- aBc
In both comparisons gene B is changing while gene A and C are same.
Thus gene B is in the mid.
Therefore, In both comparisons gene B is changing while gene A and C are same.
Learn more about gene from the given link.
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