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Mars2501 [29]
3 years ago
6

Single strands of nucleic acids are directional, meaning that there are two different ends. What functional groups define the tw

o different ends of a strand?
Biology
1 answer:
worty [1.4K]3 years ago
7 0

Answer:

The 5' end has free phosphate group while the 3' end has free OH group.

Explanation:

Each DNA strand has two ends that differ from each other with respect to the functional group. The nucleotide present at the 5' end of a DNA strand has a free phosphate group. This phosphate group of other nucleotides of the DNA strand is bonded in phosphodiester bonds. Likewise, the 3' end of a DNA has a free OH group. This makes the two ends of a DNA strand quite different from each other. A DNA new nucleotide can be added to the 3' end due to the presence of a free OH group.

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Primates have the greatest __________ of any mammalian group
svlad2 [7]

Answer:

Primates have the greatest brain size to body size ratio of any mammalian group.

Explanation:

Primates can be described as mammals which have digits. Apart from having digits, primates comprise of features like skull and teeth. Primates undergo sexual reproduction to produce offsprings and are characterized of being placental mammals.

Primates are organisms that have the largest size of the brain tin relation to their body ratio. Among primates, Humans have the largest brain to body size ratio, making them by far the most intelligent organism in the animal kingdom.

5 0
3 years ago
Steven puts the two stones in a rock tumbler. The tumbler spins so the rocks bump against each other. When the rocks are removed
Mandarinka [93]
F. Stone 1 is softer and experienced a greater physical reaction.

Physical reaction is when an object's appearance changes, not the identity (which would be chemical reaction). Because stone 1 is softer, it would be easier to change its physical property. Since stone 2 is harder, it's more durable and therefore harder to change. 
8 0
3 years ago
Explain the relationship between inputs and outputs in cellular respiration and photosynthesis for an organism
Tamiku [17]
Sugar and oxygen are broken down in the mitochondria, and the outcome is carbon dioxide, water, and ATP. The ATP is energy for the cells. plants use the outputs of photosynthesis (sugar, oxygen) as the inputs of cellular respiration
7 0
3 years ago
A girl of normal stature is born to two parents with achondroplasia who have very short stature, especially disproportionately s
IRINA_888 [86]

Answer:

0%

Explanation:

Achondroplasia is an autosomal dominant disorder that is expressed in both homozygous and heterozygous dominant genotypes. Since two affected parents have a normal girl child, both the parents should be heterozygous carrier for the disease.  Let's assume that the dominant allele "A" is responsible for the disease. Genotype of both the parents of the girl would be "Aa". The genotype of girl with normal stature is "aa". Genotype of her normal partner is "aa".

A cross betwee aa X aa would get all the progeny with "aa" genotype. Therefore, all of their children would have normal stature and there is 0% probability for them to have a child with achondroplasia.

8 0
3 years ago
Diffusion is an important process in animals and plants.
Paraphin [41]

Answer:

Diffusion helps animals in respiration. The cells in an animal's body need glucose and oxygen for respiration. Both these are carried in the blood. When blood reaches the cells the molecules of glucose and oxygen diffuse out of the blood and into the cells. As cells use up the glucose and oxygen they produce waste chemicals and carbon dioxide.

Diffusion is a very important process for photosynthesis where carbon dioxide from the stomata diffuses into the leaves and finally into the cells. This helps the plants to photosynthesize and produce more food.

Example for animals: Animals using glucose and oxygen in diffusion.

Examples for plants: Plants using carbon dioxide to photosynthesize.

8 0
3 years ago
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