Answer:
Half of the males are colorblind, dwarf and the other half colorblind, normal height.
Explanation:
The achondroplastic dwarf man with normal vision has a DdXY genotype. He marries a color-blind woman of normal height, so the hergenotype is ddX (c) X (c). All males will be colorblind as they inherit the X (c) chromosome from their mother. Half of them will be of normal height. So half of her boys will be colorblind and of normal height. To see how it works genetically, the cross is:
DdXY x ddX (c) X (c)
Your children have one of the four possible genotypes:
DdXX (c) (female, normal vision, colorblind carrier, dwarf)
DdX (c) Y (male, colorblind, dwarf)
ddXX (c) (woman, normal vision, color blindness carrier, normal height)
ddX (c) Y (male, colorblind, normal height)
The provided statement stating that the rabbits are born to be blind," is true.
Rabbits are born blind. At birth, their eyes are closed, and they rely primarily on their sense of touch and smell to navigate and locate their mother for nursing. It takes a few days for their eyes to open, and their vision gradually develops over the following weeks.
Rabbits are small, furry mammals belonging to the family Leporidae. They are herbivorous animals found in various habitats around the world, except for Antarctica. Rabbits have long ears, a compact body, and strong hind legs adapted for swift movement and jumping. Rabbits are popular as pets due to their small size, cute appearance, and relatively low maintenance requirements.
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a. Supply oxygen to cells for cellular respiration
b. Circulate blood through the blood vessels
c. Rid the blood of water and metabolic wastes
d. Decrease moisture stored in the blood and lungs
The respiratory system's primary job is to provide cells with oxygen so they may respire. This procedure entails absorbing oxygen from the atmosphere, delivering it to the body's cells, and exhaling carbon dioxide as waste.
The cells utilise the oxygen to produce ATP (adenosine triphosphate), which is a kind of energy. The cells then use this energy to perform a variety of tasks. The body's blood circulation is aided by the respiratory system.
It achieves this by assisting in the pumping of oxygen-rich blood to the rest of the body through the diaphragm. By doing this, it is possible to guarantee that the body's cells get enough oxygen. Finally, the respiratory system helps rid the metabolic wastes and a body of water.
Carbon dioxide, a waste product of cellular respiration, is exhaled to accomplish this. This enables the body to operate effectively by preserving thae right balance of water and metabolic wastes. In conclusion, the respiratory system's primary job is to provide cells with oxygen so they may respire.
Additionally, it aids in blood circulation throughout the body and removes water and metabolic wastes.
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Answer:
Supply oxygen to cells for cellular respiration.
Explanation:
took the test
Answer:
Transcription.
Explanation:
During gene expression, information present in DNA gets transferred to RNA by the process of transcription. The synthesized RNA is then transported to the ribosomes (present in cytosol), where the process of translation.
Hence, due to the process of transcription, DNA remains in nucleus RNA molecule moves outside the nucleus and provides information for the protein synthesis, DNA remains in nucleus.
Thus, the correct answer is 'transcription.'
T
F
Sensory cells are specialized cells found in the nervous system that are responsible for detecting and responding to different types of stimuli, such as light, sound, touch, taste, and smell. These cells are essential for our senses to function properly and allow us to perceive and interact with the world around us.
While many sensory cells are long-lived, they can be damaged or destroyed by various factors such as aging, disease, injury, or exposure to toxins.
For example, exposure to loud noise can damage the sensory cells responsible for hearing, leading to hearing loss or deafness. Similarly, exposure to UV radiation can damage the sensory cells in the skin that detect touch and temperature, leading to reduced sensitivity or loss of sensation.
However, some sensory cells are capable of regeneration throughout life. For instance, the sensory cells responsible for detecting odors in the nose can regenerate throughout a person's lifetime, allowing them to maintain their sense of smell even as they age. Similarly, some sensory cells in the retina of the eye can regenerate, although this ability is limited and not fully understood.
In summary, while sensory cells are long-lived and important for our senses, they can be damaged or destroyed by various factors. Some sensory cells are capable of regeneration throughout life, while others are not. Therefore, it is not entirely true that someone has a sensory cell for life, as these cells can be lost or replaced over time.
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Answer:
False.
Explanation:
Cells quite often decay, as the cells you have when you were 1 most likely will not be the same exact cells when you are 21.
Answer:
Active Diffusion
Explanation:
In active transport, a molecule is transported against its gradient which means the flow of molecule is from regions of low concentration to regions of high concentration. In order to carryout such transports, external energy is applied through biological pumps such as sodium-potassium pump (Na+/K+ ATPase) which maintains the resting potential of the cell.
Some times the energy produced by ATP is directly used and this process is known as primary active transport/diffusion