All categories

2 years ago

Explain why mitosis does not produce genetic variation and how meiosis leads to the production of tremendous genetic variation.

1 answer:

6 0

Mitosis produces cells that are genetically identical to the parent cell.
Meiosis includes two distinct processes that contribute to the generation of
genetic variation: crossing over shuffles alleles on the same chromosome
into new combinations, whereas the random distribution of maternal and
paternal chromosomes shuffles alleles on different chromosomes into new
<span>combinations.</span>

You might be interested in

Pubic hair, breasts, facial hair, and deepening of the voice are called _____.

andrezito [222]

I believe that would be called puberty, or the going of becoming from young childhood to late childhood

8 0

2 years ago

Read 2 more answers

"At first, the group of investors were not impressed by young Calvin's ________ for the new advertising campaign, but by the end

Sphinxa [80]

<span>"At first, the group of investors were not impressed by young Calvin's concept for the new advertising campaign, but by the end of the presentation, everyone was on board with the plan."</span>

4 0

2 years ago

Read 2 more answers

has recently taken up weight lifting and his friends at the gym mistakenly believe they should eat more protein to build muscle.

faltersainse [42]

Complete Question

Ruben Ward has been weight lifting and eating a high protein diet. Below is Ruben's profile and what he ate for a day. He entered his profile information and food intake into Diet & Wellness Plus and then pulled the Diet & Wellness Plus Reports. View Ruben’s Intake vs Goals and Macronutrient Ranges Reports and then answer the questions below. Profile for Ruben Ward 1. Age: 19 years old 2. Gender: Male 3. Height: 5 ft, 8 inches 4. Weight: 205 lbs 5. Non-Smoker 6. Activity Level: Active

Ruben has recently taken up weight lifting, and his friends at the gym mistakenly believe they should eat more protein to build muscle. The DRI for protein for healthy adults is 0.8 g per kg body weight. If Ruben weighs 205 lbs (93 kg), how many grams protein per kg body weight did he eat on this day?

a. 5.37 g/kg

b. 10.33 g/kg

c. 3.55 g/kg

d. 4.88 g/kg

Answer:

c. 3.55g/kg

Explanation:

RDI means Recommended Dietary intake. It is the required amount of a nutrient expected to be taken by an individual for optimal health.

The Recommended Dietary Intake I'd protein falls withing the range of 0.8 grams per kg to 1.8 grams per kg

For Reuben

He weighs 93 kg

If Reuben consumed 330 grams of protein, his grams of protein per kg body weight is

330 grams ÷ 93kg

= 3.55g/kg.

4 0

2 years ago

Hank Greene, an airline pilot, is having difficulty with the sleep-wakefulness portions of his circadian cycle. The pineal gland

d1i1m1o1n [39]

Answer:

Melatonin

Explanation:

Melatonin is the hormone that is produced by the pineal gland in response to the dark and light cycle.
The pineal gland is turned on when there is darkness and turned off when there is light.
When it's dark, the pineal gland becomes active and produces melatonin leading to an increase in the melatonin levels in the blood and a person starts to feel more sleepy and the levels of melatonin remain in the blood for about 12 hours after which they fall and the state of wakefulness occurs.
The levels of melatonin fall sharply in the presence of bright light.
Thus, the melatonin hormone is responsible for controlling the sleep-wake cycle.

7 0

2 years ago

Which digestive processes occur first? *

fiasKO [112]

Mechanical digestion so breaking down of the food in your mouth. Hope this help :)

4 0

2 years ago

Read 2 more answers