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omeli [17]
3 years ago
9

What produced the elements heavier than iron (Fe)?

Biology
2 answers:
alekssr [168]3 years ago
6 0

Answer:

if i would say then rocks they are as heavy as metal

anastassius [24]3 years ago
4 0

Answer:

Neutron-capture inside stars.

Explanation: Although there are other minor contributions they are not only produced in stars that explode in supernova.

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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 (<em>tt</em>).

<u>The frequency of genotypes according to Hardy-Weinberg equilibrium is:</u>

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

where p is the frequency of the <em>T</em> allele and q is the frequency of the <em>t</em> allele.

Affected individuals are 1 in 4500, which means the frequency of <em>tt </em>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
What features are present in both a plant cell and bacterial cell
stellarik [79]
The answer is D. Bacterial calls do not have chloroplasts or cell walls, but both have cell membranes ribosomes, and a nucleus.
6 0
2 years ago
Read 2 more answers
Give two adaptations of the wings and limbs for their functions. (Roaches)
svet-max [94.6K]

Beyond durability, cockroaches are built to play defense. They have an exoskeleton to protect their soft bodies, and will hide whenever they're in the process of molting their exoskeleton. The exoskeleton is not only rigid but flexible to allow the roach to crawl into tiny crevices. Their legs are built for running

7 0
3 years ago
Which is required for sexual reproduction?
m_a_m_a [10]

Answer:

Meiosis

Explanation:

Haploid number of chromosomes

8 0
3 years ago
Read 2 more answers
"ucture and properties of Matter
lapo4ka [179]

Answer:

Covalent bonds form when two atoms share valence electrons,

while Van der Waals forces cause an attraction between nonpolar

molecules

Explanation:

A covalent bond is said to be formed when two atoms of the same or different elements share electrons. In an ordinary covalent bond, each bonding atom contributes one valence electron while in a dative covalent bond only one of the bonding atoms provides the shared pair of electrons.

Van Der Waals forces is the major intermolecular interaction between non polar compounds. Van Der Waals forces " are caused by correlations in the fluctuating polarizations of nearby particles"(Wikipedia).

4 0
3 years ago
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