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denis-greek [22]
3 years ago
7

What are three inventions used to reduce friction??

Biology
1 answer:
serious [3.7K]3 years ago
5 0
Lubricants, Magnetic Levitation, Ball Bearing
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If a male dog has 20 chromosomes in his sperm cell, how many does he have in his body cell?
LUCKY_DIMON [66]
40 a body cell has twice the number of chromosomes than in a gamete
4 0
3 years ago
Please help meeee asap
jolli1 [7]

Answer:

A, I think

Explanation:

8 0
3 years ago
Suppose a gene has two alleles, one of which is dominant over the other. An individual whose genotype is for the recessive allel
Trava [24]

Answer:

This question is incomplete, the options are:

A. Two copies of the allele that determines phenotype whenever the allele is present

B. Two copies of the allele whose effect is hidden unless the other allele is absent

C. One copy of the allele that determines phenotype when present and one copy of the other allele

D. One copy of each of two alleles that both contribute equally to determining phenotype

The answer is B.

Explanation:

According to Gregor Mendel, a Gene comes in two alternative forms called ALLELES. One allele called the DOMINANT ALLELE is capable of masking the phenotypic expression of the other called the RECESSIVE ALLELE. The dominant allele will always express itself whenever it is present. However, a recessive trait will only be expressed when two alleles for recessiveness occur in the gene.

An individual whose genotype is for the recessive allele will have two copies of the allele whose effect is hidden unless the other allele is absent. This means that in that particular gene, the two present alleles will be recessive alleles.

4 0
3 years ago
The trait that overpowers and always shows up when the allele is present. A.Hybird traits B.Dominant traits C.Recessive traits
jekas [21]

Answer:

B. Dominant traits

Explanation:

Dominant traits are as what the name implies, dominant over other traits. If something overpowers the other trait then it is a dominant trait.

7 0
2 years ago
Giving brainly if correct​
Eduardwww [97]

Answer:

The correct answer is b

Explanation:

i hope this helps! have a wonderful rest of ur day :)

4 0
2 years ago
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