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lidiya [134]
3 years ago
9

What is happening to a substance undergoing thermal expansion?

Biology
1 answer:
ad-work [718]3 years ago
7 0
<span>A substance undergoing thermal expansion will expand in some way. Most materials are subject to expand when heated and to contract when cooled</span>
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DNA replicates by breaking the bonds between its two strands, after which each strand?
salantis [7]

Answer:

i think its B

Explanation:

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5 0
3 years ago
During what time period does the balloon drift in a clockwise direction
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The balloon drifts in a counterclockwise direction from 9:00 a.m. to 12 (Midnight) 3.

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3 years ago
Alleles can be described as 1. dominant 11. recessive III. codominant IV. partially dominant V. incompletely dominant O A. I, II
joja [24]

Answer:

A. I, II, III, and V only

Explanation:

In genetics, an allele refers to the specific form of a gene, which encodes traits. These alleles are usually in pairs in a diploid organism i.e. an organism with two sets of chromosomes. According to Gregor Mendel,

- An allele can either be DOMINANT when the allele masks the phenotypic expression of its allelic pair while the allele that is masked is said to be RECESSIVE.

- Two alleles can also be CO-DOMINANT when the two alleles are neither dominant or recessive over one another but are simultaneously expressed in that particular gene.

- Alleles can also be INCOMPLETELY DOMINANT when one allele is not completely dominant over the other, hence, forms a third intermediate phenotype when in combination with the second allele i.e. in an heterozygous state.

Based on this, an allele can be dominant (I), recessive (II), codominant (III), and incompletely dominant (V).

8 0
3 years ago
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mihalych1998 [28]
The second question has the answer of A
5 0
3 years ago
If a biologist wanted to analyze the evolutionary relationship in a gene that is found in both eukaryotes and bacteria, which of
riadik2000 [5.3K]

Answer:

A) histone coding genes

Explanation:

Histones are the proteins involved in the packing of DNA in eukaryotes. They are positively charged proteins and are not found in bacteria. To analyze the evolutionary relationship in a gene between eukaryotes and bacteria, one must choose the gene present in both of them. The tRNA, rRNA and hexokinase encoding genes are common to both bacteria and eukaryotes. Therefore, one of these genes may be chosen for the study. However, histone encoding genes are not present in the genomes of bacteria. Therefore, the study of the histone encoding gene would not be useful for the mentioned purpose.

8 0
3 years ago
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