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prohojiy [21]
3 years ago
14

How many groups of protists are there

Biology
2 answers:
damaskus [11]3 years ago
6 0

Answer:

3 groups.

Explanation:

Each of these three groups have multicellular species and the green and red algae have many single-celled species. The land plants are not considered protists.

Ad libitum [116K]3 years ago
6 0

Answer:

3 groups

Explanation:

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The term gender refers to:
Tom [10]

Answer:

a. cultural categories related to the identities and roles of men and women

Explanation:

Gender can be defined as that which identifies and differentiates men and women, that is, male and female. According to the “traditional” definition of gender, it can be used as a synonym for “sex”, referring to what is proper to males as well as females. However, from the point of view of the social sciences and psychology, mainly, gender is understood as what socially differentiates people, taking into account the historical-cultural patterns attributed to men and women, so we can Consider that the letter A, is the answer to your question.

7 0
3 years ago
Without genetic , natural selection cannot occur
Sati [7]

Non Genetic Changes CANNOT be passed to the next Generation and are NOT examples of evolution.

6 0
4 years ago
Read 2 more answers
Which of the following mutations would be most likely to have a harmful effect on an organism?
klasskru [66]

Answer:

d. a single nucleotide insertion downstream of, and close to, the start of the coding sequence.

Explanation:

A <u>single nucleotide insertion downstream and close to the start of coding sequence will produce the most harmful effect</u> among all these given options because it will cause the <u>entire reading frame to shift in the beginning itself leading to insertion of wrong amino acids in the entire polypeptide chain</u>, hence the entire protein will have extremely different amino acids than the original protein was supposed to have and such <u>protein will be dysfunctional. </u>

In option (a), it is given that the three nucleotides near the middle of the gene will be deleted. This scenario will produce comparatively less harmful effect because in this case only one amino acid which is coded by this deleted triplet codon will be absent in the polypeptide.

In option (b), a single nucleotide deletion has occurred that too in an intron. It will produce <u>no harmful effect in case of eukaryotes</u> because introns are ultimately removed before translation so the amino acids in the polypeptide will remain the same. In case of prokaryotes such deletion may cause some harmful effect in case of mRNA only because introns in prokaryotic mRNA are not removed. But, if the mRNA is for <u>prokaryotic tRNA and rRNA </u>then there will be no harmful effect because they undergo processing in which introns are removed.

In option (c) also there will be very less harmful effect because deletion is occurring near the end of coding sequence which will lead to insertion of wrong amino acid in the polypeptide at the end of polypeptide chain that means very less abnormal amino acids will be present so effect will be less harmful.

6 0
3 years ago
In meiosis, if the parent cell has 40 chromosomes, the daughter cell will have how many chromosomes?.
tatiyna

Answer:

20

Explanation:

during meiosis the number of chromosomes is split in half

7 0
3 years ago
Where can you find the human sex chromosomes in a karyotype
dybincka [34]

Answer: According to international conventions, human autosomes, or non-sex chromosomes, are numbered from 1 to 22, in descending order by size, with the exceptions of chromosomes 21 and 22, the former actually being the smallest autosome. The sex chromosomes are generally placed at the end of a karyogram.

4 0
3 years ago
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