1)
In some species of plants the blue color of the flower (A), dominates the white (a)
What could be the descendants of the crossing of plants with blue flowers with white
flowering plants, both homozygous? Sketch of cross well done.
2)
In some species of plants the colors of the flowers can be red, white or pink. It is
known that this character is determined by two genes alleles, red (Cr) and white (Cb), with
intermediate inheritance. How can they be the descendants of the cross between plants
with pink flowers? Sketch of cross well done.
3)
In some species of plants the colors of the flowers can be red, white or pink. It is
known that this character is determined by two genes alleles, red (Cr) and white (Cb), with
intermediate inheritance. How can they be the descendants of the cross between plants
with pink flowers plant red flowers? Sketch of cross well done.
4)
Certain types of myopia in humans depend on a dominant gene (A), the gene for the
normal view is recessive (a). How can they be the children of a normal boy and a woman
myopic heterozygous? Sketch of cross well done.
5)
In humans, the hair in peak depends on a dominant gene (P), the gene for straight
hair is recessive (p). How can they be the children of a male hair in peak, homozygous,
and a straight-haired woman, homozygous? Sketch of cross well done.
6)
In some species of plants the colors of the flowers can be red, white or pink. It is
known that this character is determined by two genes alleles, red (Cr) and white (Cb), with
intermediate inheritance. How can they be the descendants of the cross between plants
with pink flowers with white flowering plants? Sketch of cross well done.
7)
In humans the ability to bend the tongue depends on a dominant gene (L), the gene
that determines not to do it (tongue line) is recessive (l). Knowing that Bryan can fold the
tongue, Pauli can not and also Bryan's father How probable are Bryan and Pauli have a
son who can fold your tongue? Sketch of cross well done.
8)
The blood groups in humans are determined by three genes alleles: IA, which
determines the group A, IB, which determines the group B i, which determines the group
O. Genes IA and IB are codominant and both are dominant to the gene i is recessive.
How can they be the children of a man of group O and AB a woman? Sketch of cross well
done.
9)
The blood groups in humans are determined by three genes alleles: IA, which
determines the group A, IB, which determines the group B i, which determines the group
O. Genes IA and IB are codominant and both are dominant to the gene i is recessive.
How can they be the children of a man and a group AB group AB woman? Sketch of
cross well done.
10)
The blood groups in humans are determined by three genes alleles: IA, which
determines the group A, IB, which determines the group B i, which determines the group
O. Genes IA and IB are codominant and both are dominant to the gene i is recessive.
How can they be the children of a man of group A, whose mother was type O, and a
woman of group B, whose father was the group O? Sketch of cross well done
11)
Certain characters, like the disease of hemophilia, are determined by a recessive
X-linked. How can they be the descendants of a normal man (XHY) and a female carrier
(XHXh)? Sketch of cross well done.
12)
Certain characters, such as color blindness (Daltonismo), are determined by a
recessive gene (d) X-linked How can they be the descendants of a color blind man and
color blind woman, daughter of a color blind? Sketch of cross well done.
13)
In peas, the gene for skin color has two alleles: yellow (A) and green (a). The gene
that determines the texture of the skin has two others smooth skin (B) and rough (b).
Plants cross-smooth yellow peas (AA, BB) with green-pea plants rough (aa, bb). From
these crosses are obtained 1000 peas. What results are expected? Sketch of cross well
done.
14)
In peas, the gene for skin color has two alleles: yellow (A) and green (a). The gene
that determines the texture of the skin has two others smooth skin (B) and rough (b).
Plants cross-smooth yellow peas (AA, BB) with green-pea plants rough (aa, bb). From
these crosses are obtained 1000 peas. What results are expected? Sketch of cross well
done.
15)
In peas, the gene for skin color has two alleles: yellow (A) and green (a). The gene
that determines the texture of the skin has two others smooth skin (B) and rough (b).
Plants cross-smooth yellow peas (Aa, Bb) with green-pea plants smooth (aa, bb). From
these crosses are obtained 884 kg of peas. What results are expected? Sketch of cross
well done.
16)
In peas, the gene for skin color has two alleles: yellow (A) and green (a). The gene
that determines the texture of the skin has two others smooth skin (B) and rough (b).
Plants cross-smooth yellow peas (Aa, Bb) with plant-smooth yellow peas (Aa, Bb). From
these crosses are obtained plants that give 220 kg of peas How many kilos of each class
get? Sketch of cross well done.
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