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2 years ago

The different between microspores and pollen grain

1 answer:

8 0

The key difference between microspore and pollen grain is that microspore is the small spore that develops into the male gametophyte in plants while pollen grain is the small grain that contains the male gametophyte.

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Can a mutation in any cell of an organism can be passed on to offspring of the organism

kozerog [31]

Yes it can (I have to type 20 characters)

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3 years ago

Which environmental factor could lead to a decrease in genetic variation in a population of tuna?

jeyben [28]

Answer:

The environmental factor that could lead to a decrease in genetic variation in a tuna population is an increase in pollution (second option).

Explanation:

There is a correlation between genetic variability and environmental pollution, the latter being a factor that impacts negatively on the variability of a specific population.

The concept of pollution stress not only implies a low rate of reproduction, but it is also a factor that prevents genetic exchange with other populations, which is a factor that makes the genetic variability decrease in a population.

For these reasons an increase in pollution implies a decrease in genetic variability in a tuna population.

Other options, such as an increase in food availability, a decrease in tuna fishing or a decrease in tuna predators, are environmental factors that contribute to increased genetic variability.

3 0

3 years ago

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One strand in a segment of a gene has the base sequence TGCTTA. What would be the complementary sequence of nucleotides found on

yarga [219]

The complementary sequence of nucleotides found on the other strand of DNA is ACGAAT when one strand in a segment of a gene has the base sequence TGCTTA.

Explanation:

Deoxyribonucleic acid is the one which carries the genetic information from the parent to the offspring. During DNA replication one strand of DNA replicates to produce another strand.

The DNA molecule have a anti-parallel structure and the two strands run in opposite direction. If in one strand in a segment of a gene has the base sequence TGCTTA the complementary sequence of nucleotides found on the other strand of DNA will be ACGAAT.

6 0

3 years ago

What would lead to competition as a population increases

Varvara68 [4.7K]

Answer:

for food, water, shelter, mates, light, and other resources needed for survival and reproduction.

Explanation:

hope this helps

so sorry if this is wrong

3 0

2 years ago

CAN SOMEONE PLEASE HELP ME!?!?!

Roman55 [17]

Answer:

3) Temperature

4) gill covering opening and closing per minute

5)as temperature rises, the rate of gill covering opening and closing per minute increase until the temperature reaches 27℃ where the rate decreases

Explanation:

4) you can adjust and control the temperature in an experiment

5) you can't control the gill opening and closing rate

4 0

3 years ago

Read 2 more answers