Biology Species Count and ECG Analysis Quiz

Play an AI-generated podcast conversation about this lesson

In the given pedigree chart, what conclusion can be drawn regarding the male parent?

Heterozygous

Possibly color blind

Cannot be determined

Homozygous dominant (correct)

Based on the pedigree chart, what conclusion can be drawn about the female parent?

Homogygous dominant

Possibly color blind

Heterozygous (correct)

Cannot be determined

How many sperm and ova are formed from four secondary spermatocytes and three secondary oocytes respectively?

4 spermatozoa, 4 ova (correct)

16 spermatozoa, 12 ova

8 spermatozoa, 3 ova

3 spermatozoa, 8 ova

Which of the following are narrowly utilitarian arguments for conserving biodiversity?

III, V and VII Signup and view all the answers

According to the pedigree chart, could the parents have a normal daughter for the specific trait?

No Signup and view all the answers

What conclusion can be drawn about the trait under study in the pedigree chart?

Possibly color blindness Signup and view all the answers

Which of the following options correctly describes the total number of plant and animal species described so far?

Slightly more than 1.5 million Signup and view all the answers

In an ECG of a normal human, which component indicates the initiation of total cardiac contraction correctly?

Peak T-initiation of total cardiac contraction Signup and view all the answers

What is the standing crop at each trophic level typically measured as?

Both the mass and number of organisms Signup and view all the answers

Which of the following statements regarding the total number of described plant and animal species is FALSE?

5 million Signup and view all the answers

What does Peak P indicate in an ECG of a normal human?

Initiation of left atrial contraction only Signup and view all the answers

'Each trophic level has a certain mass of living material at a particular time called as the standing crop.' Which component is responsible for this statement?

(D) Both (A) and (R) are correct and (R) is the correct explanation of (A) Signup and view all the answers

Which statement about the ploidy level of endosperm in angiosperms is generally correct?

3n Signup and view all the answers

Which statement regarding the forelimbs of whales, bats, cheetahs, and humans is accurate?

Forelimbs are products of convergent evolution. Signup and view all the answers

In the context of biotechnology, which statement is correct?

More than 2300 restriction enzymes have been isolated. Signup and view all the answers

What is a correct statement about mycorrhiza?

They assist plants in mineral uptake. Signup and view all the answers

Which of the following terms best describes the process where homologous structures develop along different directions due to adaptations to different needs?

Convergent evolution Signup and view all the answers

What is the ploidy level of endosperm in angiosperms like?

Triploid Signup and view all the answers

What is the correct match between column I and column II?

(A-iii), (B-iv), (C-i), (D-ii) Signup and view all the answers

Which statement about restriction endonucleases is true?

Restriction endonucleases are also called 'molecular scissors' because they cut DNA at specific sites. Signup and view all the answers

Which extinct animal provides evidence of evolution?

Archaeopteryx Signup and view all the answers

What does the Hardy Weinberg equilibrium primarily depend on?

Gene drift Signup and view all the answers

Which of the following is not a characteristic of Cyclosporin A?

Linked to Clostridium Signup and view all the answers

'Sticky ends' in DNA fragments produced by restriction endonucleases refer to:

Single-stranded overhangs with complementary sequences Signup and view all the answers

Which of the following is a correct reason for terminating a pregnancy based on the given text?

(ii) To prevent the fatality or harmfulness to the mother or to foetus or both due to the continuation of pregnancy Signup and view all the answers

Which of the following statements about hormones is correct based on the given text?

Statement 1: Hormones are Non-nutrient chemicals which act as intercellular messengers and are produced in large amounts. Signup and view all the answers

In the figure of the human female reproductive system, what do parts A, B, C, and D represent?

A-Oviduct, B-Uterus, C-Ovarian ligament, D-Ovary Signup and view all the answers

Which of the following is NOT a valid reason for terminating a pregnancy based on the given text?

(iii) Termination of pregnancy is safe in each and every case Signup and view all the answers

Which of the following best describes hormones?

They act as intercellular messengers produced in significant quantities. Signup and view all the answers

Based on the given text, what is part B in the human female reproductive system?

Uterus Signup and view all the answers