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koban [17]
3 years ago
12

What did Schleidan contribute to the cell theory?

Biology
1 answer:
ale4655 [162]3 years ago
7 0
He found a nuclear structure (cells) in plants by looking through a microscope

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If a widow’s peak (W) is controlled by a dominant allele and a straight hairline (w) is controlled by a recessive allele, how wo
Firdavs [7]

Answer:

The correct answer is - a heterozygous individual with widow's peak.

Explanation:

In the given case, the dominant character is the widow's peak that is represented by the allele W and the straight hairline is a recessive character represented by the allele w. So, if an individual has both dominant alleles WW it means this individual has widows peek as W is the dominant allele and if this individual has ww allele it means the straight is expressed as no dominant allele to mask the effect of recessive allele w.

In the case of heterozygous that means one copy of dominant and one copy of recessive allele is present that is Ww then this individual have a widow's peak due to the fact that dominant allele will mask the effect of recessive allele.

8 0
3 years ago
Endocarditis occurs when bacteria infect the bloodstream and attach themselves to the inner lining of the heart or a defective h
Allisa [31]

Answer:

Streptococcal or Staphylococcal bacteria

Explanation:

They attach themselves to the inner lining of the heart making it to becme inflamed and casing damage to the heart valves.

3 0
4 years ago
Who wants to get a pc
Jet001 [13]

Answer:

i do haha

Explanation:

8 0
3 years ago
In E. coli protein synthesis, the initiation complex contains
Ksenya-84 [330]

Answer:

The correct answer will be option-C.

Explanation:

The process of translation in prokaryotes is complex process and proceeds in three steps: initiation, elongation and termination.

1. Ribosomal subunits: 50S (5S and 23S subunit) and 30S (16S and proteins).

2. Initiation factors: IF1, IF-2 and IF-3 which help in the formation of assembly.

3 GTP: guanosine triphosphate as a source of energy.

4. Charged tRNA: with N-formylmethionine is the first amino acid.

5. mRNA: the RNA to be translated.

Since the option contains both 50S and 16S components of ribosome thus, Option-C is the correct answer.

7 0
3 years ago
Mary is in an automobile accident and suffers a spinal cord injury. She has lost feeling in her lower body. Her doctor tells her
Dennis_Churaev [7]
<h2>C) option is correct </h2>

Explanation:

  • The spinal cord has numerous groups of nerve fibers going towards and coming from the brain
  • These have been collectively called the ascending and descending tracts of the spinal cord, respectively, these tracts are responsible for carrying sensory and motor stimuli to and from the periphery (respectively)
  • The ascending tracts transmit sensory information from the sensory receptors to higher levels of the CNS
  • The descending tracts originate from different cortical areas and from brain stem nuclei
  • The descending pathway carry information associated with maintenance of motor activities such as posture, balance, muscle tone, and visceral and somatic reflex activity
3 0
4 years ago
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