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galina1969 [7]
3 years ago
10

Which of these is a nessacary condition for a hypothesis to be useful

Biology
2 answers:
VMariaS [17]3 years ago
7 0
D. The hypothesis makes predictions about an experiment
Diano4ka-milaya [45]3 years ago
3 0
<span>D.) The hypothesis makes predictions about an experiment

Hope this helps!</span>
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2. "I should gain a total of about 30 lb during my pregnancy."

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"I should gain a total of about 30 lb (13.6 kg) during my pregnancy." [which is 65%]

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Which plant hormone or phytohormone acts as a growth inhibitor?
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Abscisic acid.

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Also written as ABA.

Act as Growth inhibitor.

Sorry if I write wrong spelling of abscisic acid. (But I think it's right)

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A batch of food contaminated with botulism exotoxin, consumed at a family reunion by most of the members of a family, would be a
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Answer: Point source

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8 0
3 years ago
Chromosome is to Nucleus as DNA is to ?
kakasveta [241]

Chromatin

Chromosome, the highest packing level of DNA, is packed in nucleus. DNA strand itself is packed in chromatin. Chromatin is DNA packaging into 30nm fibers that involve DNA strand with scaffolding around DNA proteins, like histones, in eukaryotic cells’ nucleus.

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The DNA strand is folded into nucleosomes, bead-like structures on the DNA and fold up into the 30nm fibers. During meiosis and mitosis, the chromatin is super-coiled up into thicker fibers called chromosomes. Chromosomes within the nucleus can be viewed by a light microscope in a cell in metaphase.

Learn More:

For more on levels of DNA check out;

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Read 2 more answers
Identify the phenotypes for the offspring of a parent with the genotype IBi and a parent with the genotype IAIA. type O type A,
agasfer [191]
 <span>I is dominant, i is recessive. The A's and B's are just show which allele I is. When there is just one dominant allele, it masks the recessive in blood typing. Remember IA and IB are codominant. 

O is always ii 
A is IAi (heterozygous) or IAIA (homozygous) 
B is IBi (heterozygous) or IBIB (homozygous) 
AB is always IAIB 

Remember: You get one allele from each parent! 

1. Father must be ii, mother must be ii, so all children must be ii. 

2. Father is IAIA (the homozygous one), the mother is IBIB, so the only possibility for the children is IAIB, because you get one allele from the father and one from the mother. 

3. Father is IAi, mother is IBi, so the children can be any of the blood types, because they can have all the combinations of genotypes. 

4. Father is ii, mother is IAIB. Children can only be IAi or IBi. 

5. Father is IAIB, mother is IAIB. Children can be IAIA, IBIB, or IAIB. 

Example of Punnett square: 
3. Father is type A, heterozygous, mother is type B, heterozygous 
Father must be IAi (heterozygous) 
Mother must be IBi (heterozygous) 

_______IA ____ i 

IB____ IBIA____IBi 

i _____ IAi______ii 

Sorry, that was difficult on here, hope it's understandable. 
The father's alleles run across the top, the mother's are on the side, you follow to where they meet to find the possibilities for the children. IBIA (AB blood type), IBi (B), IAi (A), and ii (O) are the possibilities in this case. 

Hope that helps!</span>
6 0
3 years ago
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