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Paraphin [41]
4 years ago
14

What type of bond holds the nitrogenous bases together?

Biology
1 answer:
inysia [295]4 years ago
6 0

Answer:

A. Hydrogen

Explanation:

Adenine and thymine form two hydrogen bonds.

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If a strand has 10% cytosine, what percent will be adenine?
ollegr [7]

Answer:

40% of adenine is present

Explanation:

4 0
3 years ago
Match the component of the midbrain with its function.
IgorLugansk [536]

Answer:

Involuntary motor commands to the erector spinae: it is the tegmentum

Houses the superior colliculi: it is the tectum

Site of neurons that produce dopamine: it is the substantia nigra

Motor axons from primary motor cortex to spinal cord: cerebral peduncles

Explanation:

The tegmentum is an area of the brainstem involved in unconscious perception and reflexive commands. The tectum is localized in front of the tegmentum, which has been involved in motor responses such as, for example, walking, swimming (in fish), etc. The substantia nigra is a region of the ventral midbrain with a high concentration of neuromelanin in its dopaminergic neurons. The substantia nigra has been associated with Parkinson's and Huntington's diseases. Finally, the cerebral peduncles are two structures on each side of the brainstem that attach this component of the brain with the cerebrum. The cerebral peduncles have been involved with motor skills, balance and posture control.

7 0
3 years ago
Infectious diseases are caused by ____.
Sergeeva-Olga [200]

Infectious diseases are caused by microorganisms that enter your body, through a contaminated source, which can be food, water, a person, air, etc.

These microorganisms can be either bacteria, fungi, viruses, etc.

Hope it helped,

BioTeacher101

3 0
4 years ago
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Yuki888 [10]

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Humans, and other organisms that reproduce through sexual means, obtain approximately half of their DNA sequence from the father
Lemur [1.5K]
Is the letter D because your having half of their DNA. That's why your mother is contributing the Y chromosome and your father is contributing the X chromosome
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3 years ago
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