Question

Which of the following is an example of using molecular evidence to construct a phylogenetic tree?

Group of answer choices

1. Studying the cytochrome C protein sequence of different vertebrates

2. Studying the anatomical features of different vertebrates

3. Studying the embryonic structures of different vertebrates

4. Studying the reproductive strategies of different vertebrates

If the template strand of DNA for a small gene is 3'-ATGCCTTCCATGCATGATCGA - 5', what would be the mRNA sequence?

Group of answer choices

1. 3'-AUGCCUUCCAUGCAUGAUCGA - 5'

2. 3'-ATGCCTTCCATGCATGATCGA - 5'

3. 5'-AUGCCUUCCAUGCAUGAUCGA-3'

4. 5'-ATGCCTTCCATGCATGATCGA-3'

If a fossil organism looks very similar to its modern-day relatives, what can you conclude about that organism's evolution?

Group of answer choices

1. It's being outcompeted by a newer species.

2. It isn't evolving anymore.

3. It's well adapted to a lifestyle that hasn't changed much over time.

4. It is likely to go extinct when the climate changes.

What is the chance a colorblind male and a female who is homozygous for normal vision will have a male child who is colorblind?

Group of answer choices

1. 100%

2. 0%

3. 75%

4. 50%

5. 25%

If a fossil organism looks very similar to its modern-day relatives, what can you conclude about that organism's evolution?

Group of answer choices

1. It's being outcompeted by a newer species.

2. It isn't evolving anymore.

3. It's well adapted to a lifestyle that hasn't changed much over time.

4. It is likely to go extinct when the climate changes.

An overview of the history of Earth atmospheric oxygen teaches us that ( select the 2 best )

Group of answer choices

1. oxygen levels have gradually increased from zero to what they are today.

2. oxygen level rose sharply fairly soon before the first major multicellular animals of the Cambrian/Pre-cambrian explosion.

3. photosynthesis evolved after cellular respiration

4. oxygen levels may be correlated with major evolutionary milestones of plants and other life on Earth.

Answer 1

1. Studying the cytochrome C protein sequence of different vertebrates

Phylogenetic trees are constructed using various data derived from studies on homologous traits, analogous traits, and molecular evidence that can be used to establish relationships using polymeric molecules ( DNA, RNA, and proteins ).

2. 5'-AUGCCUUCCAUGCAUGAUCGA-3'

3. It's well adapted to a lifestyle that hasn't changed much over time.

4. XY x XX

colour blind male x normal female

	X	Y
X	XX	XY
X	XX	XY

0% Chances of bein colourblind.