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adelina 88 [10]
2 years ago
11

Always return the

Biology
1 answer:
Nady [450]2 years ago
8 0

Answer:

When you are finished with the microscope, return the scanning lens (4X) to place.

Explanation:

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Witch scientists are credited for the event described in the development of the cell theory?
puteri [66]

B. Robert Hooke

Hopefully this helps, have a great day.

3 0
3 years ago
The value of ∆G for a chemical reaction taking place in an organism is −255 kJ. Which of the following best describes how this w
Sladkaya [172]

Answer:

D. The reaction will release energy the organism can use to do work.

Explanation:

A negative ∆G means that the products have less free energy than their reactants. This energy had to go somewhere, it can't just disappear. That means that 255kJ of energy was released, turning into free energy for the organism to use for work.  

3 0
2 years ago
Plz help i have attachment file
quester [9]

I believe that it is D. All of the above.

<em>If this is incorrect, please, do tell me and I can fix my mistake. Thank you.</em>

6 0
2 years ago
A gene that affects hair length in dogs has two alleles. The allele for short hair (L) is dominant
Lelechka [254]

Answer:

This question lacks options, the options are:

A. Only recessive alleles are inherited from homozygous parents.

B. Dominant alleles grow weaker as they are passed from parents to offspring.

C. Only the parent with a dominant allele can pass that allele to offspring in sexual reproduction.

D. A heterozygous parent has an equal chance of passing either the dominant allele or the recessive allele to offspring.

The answer is D

Explanation:

This question involves a single gene coding for hair length in dogs. The allele for short hair (S) is dominant over the allele for long hair (s). This means that allele 'S' will always mask the phenotypic expression of allele 's' in a heterozygous state.

According to the question, two heterozygous dogs (Ss) were crossed to produce 6 shortt-haired offsprings and 2 long-haired offsprings. An heterozygous organism is that which contains two different alleles for a particular gene i.e. a combination of dominant and recessive alleles.

Based on this, during meiosis or gamete formation, an heterozygous dog (Ss) will produce gametes with the short hair allele (S) and long hair allele (s) in equal proportion i.e. 50-50. When the two gametes containing the recessive alleles (s) produced by each heterozygous parent fuses, an offspring with a recessive phenotype (long hair, ss) is produced.

Hence, a long-hair

phenotype can appear in the offspring of two short-haired dogs because a heterozygous parent has equal chance of passing either the dominant or recessive allele to the offspring.

6 0
3 years ago
Hemophilia A is an X-linked recessive disorder. What is the probability that a son will have hemophilia if the parents are a nor
SashulF [63]

Answer:

none

Explanation:

Because the four options are: XX XX Xx Xx. There will be a 50% chance of a carrier but no actual hemophilia.

5 0
3 years ago
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