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3 years ago

If you were a farmer and planted 5,000 seeds from hybrid pea plants with the same genotype-RrAa-barring any

Biology

1 answer:

VARVARA [1.3K]3 years ago

8 0

3750 of the dominant allele. 1250 of the recessive. 50% hybrid, 25% pure dominant, and another 25% recessive.

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Gallardo and Araneda (1994) studied populations of the rodent, Ctenomys maulinus, before and after an eruption of a volcano in t

vova2212 [387]

Answer:

A) Remaining populations will have reduced genetic diversity

Explanation:

A random mating population allows for genetic diversity as each individual have equal chance of been mated to and it allows for perpetuation of frequently occurring genes.

For a small population the frequency of allele is mostly fix with virtually all loci having the same genotype because mating is within small individual and genes whose frequency is few will be drifted out of the population.

Hence, after the eruption due to a small random population diversity will be reduced as diversity occur more in a large random mating population.

6 0

3 years ago

Phenylketonuria (PKU) is a disease caused by a recessive mutation. PKU is extremely common in Ireland, affecting approximately 1

aleksklad [387]

Answer:

97%

Explanation:

PKU is caused by a recessive mutation, which means that affected individuals are homozygous and recessive (tt).

The frequency of genotypes according to Hardy-Weinberg equilibrium is:

$TT= p^2\\Tt=2pq\\tt=q^2$

where p is the frequency of the T allele and q is the frequency of the t allele.

Affected individuals are 1 in 4500, which means the frequency of tt genotype is 1/4500.

If the population is in Hardy-Weinberg equilibrium,

$q^2=1/4500\\q=\sqrt{1/4500} \\\\q=0.015$

The sum of the allele frequencies adds up to 1, therefore:

p + q = 1

p= 1 - q

p= 1 - 0.015

p= 0.985

The frequency of the TT genotype (homozygous wild-type individuals) will be:

$p^2=0.985^2\\p^2=0.97$

97% of the population will have the homozygous wild-type TT genotype.

3 0

3 years ago

Making identical copies of the same gene is referred to as?

igor_vitrenko [27]

Proteome cloning
Polymorphic cloning
Plasmid cloning
Gene cloning
Genome cloning

3 0

3 years ago

Astronomy is the study of the ___ beyond earth.

frez [133]

1 universe 2 stars 3 solar 3 planets

3 0

3 years ago

Why does dna replication occur inside the cell?

Brilliant_brown [7]

This is because both strands of DNA have complementary bases. The nucleotide sequence of each automatically gives the needed information to produce its partner. This needed information is Genetic/DNA/Parent Cell. Each cell serves as it's own template in order to acquire this.

6 0

3 years ago