Biology, 10.12.2019 00:31, aylagwilliamson

If a homozygous dominant parent and a heterozygous parent are crossed, what percentage of the offspring are expected to be homozygous recessive?

If a homozygous dominant parent and a heterozygous parent are crossed, what percentage of the offspr

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answered: brooke012002

0%. The types of offspring could be QQ ,QQ ,Qq and Qq. Homozygous recessive is qq and that is not an option.

answered: nalex0528

The correct answer is-

The percentage of the offspring that are expected to be homozygous recessive (qq) is 0 %.

As per the information given in the question, the genotypes of parent are-

Homozygous dominant ( QQ) and a heterozygous ( Qq).

Gametes produced are- QQ parent will produce Q and Q gametes while Qq will produce Q ands q allele.

A dominant allele ( represented by capital letter such as Q) always masks the expression of recessive allele ( represented by small letter such as q)

Homozygous genotye has same alleles whereas heterozygous genotype contains different alleles ( one dominant and one recessive such as Qq).

When the parents are crossed, they will produce 50 % QQ and 50% Qq offsrping but no qq offspring will be produced

Refer punett square.

If a homozygous dominant parent and a heterozygous parent are crossed, what percentage of the offspr

answered: Guest

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports the evolution of earth due to chemical weathering.

hope it !

answered: Guest

If you remove all the lions from the savanna it will lead to a increase of gazelle and a increase of cheetahs becasue of no competition

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If a homozygous dominant parent and a heterozygous parent are crossed, what percentage of the offspr...